Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Electron configurations of the elements (data page)
open-in-new
<p>This page shows the <a href="/facts/Electron_configuration/TQjRr22P">electron configurations</a> of the neutral gaseous atoms in their ground states. For each atom the subshells are given first in concise form, then with all subshells written out, followed by the number of electrons per shell. For phosphorus (element 15) as an example, the concise form is [Ne] 3s2 3p3. Here [Ne] refers to the <a href="/facts/Core_electron/LQuGLKcG">core electrons</a> which are the same as for the element neon (Ne), the last <a href="/facts/Noble_gas/j0yHMEAE">noble gas</a> before phosphorus in the periodic table. The <a href="/facts/Valence_electrons/mXPA15VP">valence electrons</a> (here 3s2 3p3) are written explicitly for all atoms. </p><p>Electron configurations of elements beyond <a href="/facts/Hassium/t0bgGzwt">hassium</a> (element 108) have never been measured; predictions are used below. </p><p>As an approximate rule, electron configurations are given by the <a href="/facts/Electron_configuration/TQjRr22P">Aufbau principle and the Madelung rule</a>. However there are numerous exceptions; for example the lightest exception is chromium, which would be predicted to have the configuration 1s2 2s2 2p6 3s2 3p6 3d4 4s2, written as [Ar] 3d4 4s2, but whose actual configuration given in the table below is [Ar] 3d5 4s1. </p><p>Note that these electron configurations are given for neutral atoms in the gas phase, which are not the same as the electron configurations for the same atoms in chemical environments. In many cases, multiple configurations are within a small range of energies and the irregularities shown below do not necessarily have a clear relation to chemical behaviour. For the undiscovered eighth-row elements, mixing of configurations is expected to be very important, and sometimes the result can no longer be well-described by a single configuration. </p> <table><tbody><tr><th colspan="19">Legend</th></tr><tr><td>1s</td><td>2s</td><td>2p</td><td>3s</td><td>3p</td><td>3d</td><td>4s</td><td>4p</td><td>4d</td><td>4f</td><td>5s</td><td>5p</td><td>5d</td><td>5f</td><td>6s</td><td>6p</td><td>6d</td><td>7s</td><td>7p</td></tr><tr><th colspan="19">1 H <a href="/facts/Hydrogen/BoYHjl0J">hydrogen</a> : 1s1</th></tr><tr><td>1s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>1</td><td colspan="2"></td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">2 He <a href="/facts/Helium/yRul93TG">helium</a> : 1s2</th></tr><tr><td>1s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2"></td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">3 Li <a href="/facts/Lithium/7vXX6BWA">lithium</a> : [He] 2s1</th></tr><tr><td>1s2</td><td>2s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">1</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">4 Be <a href="/facts/Beryllium/dv295voP">beryllium</a> : [He] 2s2</th></tr><tr><td>1s2</td><td>2s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">2</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">5 B <a href="/facts/Boron/Pmwgd7Mf">boron</a> : [He] 2s2 2p1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">3</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">6 C <a href="/facts/Carbon/ukrgQexo">carbon</a> : [He] 2s2 2p2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">4</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">7 N <a href="/facts/Nitrogen/Nf1QpGDz">nitrogen</a> : [He] 2s2 2p3</th></tr><tr><td>1s2</td><td>2s2</td><td>2p3</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">5</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">8 O <a href="/facts/Oxygen/acyn6o8r">oxygen</a> : [He] 2s2 2p4</th></tr><tr><td>1s2</td><td>2s2</td><td>2p4</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">6</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">9 F <a href="/facts/Fluorine/YUV0Fb8m">fluorine</a> : [He] 2s2 2p5</th></tr><tr><td>1s2</td><td>2s2</td><td>2p5</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">7</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">10 Ne <a href="/facts/Neon/5bF1FwGL">neon</a> : [He] 2s2 2p6</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3"></td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">11 Na <a href="/facts/Sodium/eYuSPu2V">sodium</a> : [Ne] 3s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">1</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">12 Mg <a href="/facts/Magnesium/XyIhd2FG">magnesium</a> : [Ne] 3s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">2</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">13 Al <a href="/facts/Aluminium/7wmR8jYE">aluminium</a> : [Ne] 3s2 3p1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">3</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">14 Si <a href="/facts/Silicon/cgWx0hdr">silicon</a> : [Ne] 3s2 3p2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">4</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">15 P <a href="/facts/Phosphorus/27xCeIqs">phosphorus</a> : [Ne] 3s2 3p3</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p3</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">5</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">16 S <a href="/facts/Sulfur/IK0amTfM">sulfur</a> : [Ne] 3s2 3p4</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p4</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">6</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">17 Cl <a href="/facts/Chlorine/y27UwYBM">chlorine</a> : [Ne] 3s2 3p5</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p5</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">7</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">18 Ar <a href="/facts/Argon/QX6NRH6d">argon</a> : [Ne] 3s2 3p6</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">8</td><td colspan="4"></td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">19 K <a href="/facts/Potassium/FWPwS7Rj">potassium</a> : [Ar] 4s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td></td><td>4s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">8</td><td colspan="4">1</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">20 Ca <a href="/facts/Calcium/hf252CC0">calcium</a> : [Ar] 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td></td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">8</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">21 Sc <a href="/facts/Scandium/TJRt1chg">scandium</a> : [Ar] 3d1 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d1</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">9</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">22 Ti <a href="/facts/Titanium/53ArnDoy">titanium</a> : [Ar] 3d2 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d2</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">10</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">23 V <a href="/facts/Vanadium/UvKkKTSm">vanadium</a> : [Ar] 3d3 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d3</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">11</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">24 Cr <a href="/facts/Chromium/6sVk6Uu7">chromium</a> : [Ar] 3d5 4s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d5</td><td>4s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">13</td><td colspan="4">1</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">25 Mn <a href="/facts/Manganese/j9ELd1TL">manganese</a> : [Ar] 3d5 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d5</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">13</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">26 Fe <a href="/facts/Iron/QK1JYy8E">iron</a> : [Ar] 3d6 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d6</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">14</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">27 Co <a href="/facts/Cobalt/gqhScEw4">cobalt</a> : [Ar] 3d7 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d7</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">15</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">28 Ni <a href="/facts/Nickel/KwMCHYRP">nickel</a> : [Ar] 3d8 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d8</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">16</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">29 Cu <a href="/facts/Copper/I8PEE8oX">copper</a> : [Ar] 3d10 4s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">1</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">30 Zn <a href="/facts/Zinc/80b1qgk3">zinc</a> : [Ar] 3d10 4s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">2</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">31 Ga <a href="/facts/Gallium/EucevDs9">gallium</a> : [Ar] 3d10 4s2 4p1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">3</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">32 Ge <a href="/facts/Germanium/wtoALHGs">germanium</a> : [Ar] 3d10 4s2 4p2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">4</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">33 As <a href="/facts/Arsenic/k1c4f44D">arsenic</a> : [Ar] 3d10 4s2 4p3</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p3</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">5</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">34 Se <a href="/facts/Selenium/k975NApC">selenium</a> : [Ar] 3d10 4s2 4p4</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p4</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">6</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">35 Br <a href="/facts/Bromine/oLfj3C7D">bromine</a> : [Ar] 3d10 4s2 4p5</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p5</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">7</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">36 Kr <a href="/facts/Krypton/llkNlCke">krypton</a> : [Ar] 3d10 4s2 4p6</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">8</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">37 Rb <a href="/facts/Rubidium/KDHSe2HM">rubidium</a> : [Kr] 5s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td></td><td></td><td>5s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">8</td><td colspan="4">1</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">38 Sr <a href="/facts/Strontium/ABaA5qQK">strontium</a> : [Kr] 5s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td></td><td></td><td>5s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">8</td><td colspan="4">2</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">39 Y <a href="/facts/Yttrium/BlX6rj99">yttrium</a> : [Kr] 4d1 5s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d1</td><td></td><td>5s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">9</td><td colspan="4">2</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">40 Zr <a href="/facts/Zirconium/y7gsoQFz">zirconium</a> : [Kr] 4d2 5s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d2</td><td></td><td>5s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">10</td><td colspan="4">2</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">41 Nb <a href="/facts/Niobium/3zNI8AKp">niobium</a> : [Kr] 4d4 5s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d4</td><td></td><td>5s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">12</td><td colspan="4">1</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">42 Mo <a href="/facts/Molybdenum/RX6vp2bF">molybdenum</a> : [Kr] 4d5 5s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d5</td><td></td><td>5s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">13</td><td colspan="4">1</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">43 Tc <a href="/facts/Technetium/MGYWNI5d">technetium</a> : [Kr] 4d5 5s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d5</td><td></td><td>5s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">13</td><td colspan="4">2</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">44 Ru <a href="/facts/Ruthenium/uzCm4ufn">ruthenium</a> : [Kr] 4d7 5s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d7</td><td></td><td>5s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">15</td><td colspan="4">1</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">45 Rh <a href="/facts/Rhodium/xmBd9aFG">rhodium</a> : [Kr] 4d8 5s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d8</td><td></td><td>5s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">16</td><td colspan="4">1</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">46 Pd <a href="/facts/Palladium/AXMwDFxs">palladium</a> : [Kr] 4d10</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4"></td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">47 Ag <a href="/facts/Silver/xXe41BGg">silver</a> : [Kr] 4d10 5s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">1</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">48 Cd <a href="/facts/Cadmium/wXkV2eIX">cadmium</a> : [Kr] 4d10 5s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">2</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">49 In <a href="/facts/Indium/zRq3stVb">indium</a> : [Kr] 4d10 5s2 5p1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p1</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">3</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">50 Sn <a href="/facts/Tin/obW9mqc3">tin</a> : [Kr] 4d10 5s2 5p2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p2</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">4</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">51 Sb <a href="/facts/Antimony/YsA7lVgT">antimony</a> : [Kr] 4d10 5s2 5p3</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p3</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">5</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">52 Te <a href="/facts/Tellurium/v7QvfIvS">tellurium</a> : [Kr] 4d10 5s2 5p4</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p4</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">6</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">53 I <a href="/facts/Iodine/JlfMecMf">iodine</a> : [Kr] 4d10 5s2 5p5</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p5</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">7</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">54 Xe <a href="/facts/Xenon/9E3XR69R">xenon</a> : [Kr] 4d10 5s2 5p6</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p6</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">8</td><td colspan="3"></td><td colspan="2"></td></tr><tr><th colspan="19">55 Cs <a href="/facts/Caesium/dXKN1S5k">caesium</a> : [Xe] 6s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s1</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">8</td><td colspan="3">1</td><td colspan="2"></td></tr><tr><th colspan="19">56 Ba <a href="/facts/Barium/IkL09XHQ">barium</a> : [Xe] 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">57 La <a href="/facts/Lanthanum/Uhmmy1sB">lanthanum</a> : [Xe] 5d1 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td></td><td>5s2</td><td>5p6</td><td>5d1</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">18</td><td colspan="4">9</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">58 Ce <a href="/facts/Cerium/a7UjMBQ6">cerium</a> : [Xe] 4f1 5d1 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f1</td><td>5s2</td><td>5p6</td><td>5d1</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">19</td><td colspan="4">9</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">59 Pr <a href="/facts/Praseodymium/2lnRJ9dH">praseodymium</a> : [Xe] 4f3 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f3</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">21</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">60 Nd <a href="/facts/Neodymium/GzDkTIoI">neodymium</a> : [Xe] 4f4 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f4</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">22</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">61 Pm <a href="/facts/Promethium/8xvCz9Rg">promethium</a> : [Xe] 4f5 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f5</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">23</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">62 Sm <a href="/facts/Samarium/09K3kl93">samarium</a> : [Xe] 4f6 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f6</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">24</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">63 Eu <a href="/facts/Europium/dqmBm1vr">europium</a> : [Xe] 4f7 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f7</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">25</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">64 Gd <a href="/facts/Gadolinium/eLYUeScu">gadolinium</a> : [Xe] 4f7 5d1 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f7</td><td>5s2</td><td>5p6</td><td>5d1</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">25</td><td colspan="4">9</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">65 Tb <a href="/facts/Terbium/ICF3PMED">terbium</a> : [Xe] 4f9 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f9</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">27</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">66 Dy <a href="/facts/Dysprosium/eMev6zGS">dysprosium</a> : [Xe] 4f10 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f10</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">28</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">67 Ho <a href="/facts/Holmium/C73kJVtp">holmium</a> : [Xe] 4f11 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f11</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">29</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">68 Er <a href="/facts/Erbium/XEJlgJcx">erbium</a> : [Xe] 4f12 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f12</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">30</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">69 Tm <a href="/facts/Thulium/G2905xhd">thulium</a> : [Xe] 4f13 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f13</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">31</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">70 Yb <a href="/facts/Ytterbium/3lerM9uf">ytterbium</a> : [Xe] 4f14 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td></td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">8</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">71 Lu <a href="/facts/Lutetium/URlmnYG8">lutetium</a> : [Xe] 4f14 5d1 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d1</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">9</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">72 Hf <a href="/facts/Hafnium/rBNnlxDS">hafnium</a> : [Xe] 4f14 5d2 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d2</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">10</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">73 Ta <a href="/facts/Tantalum/VwaxMm33">tantalum</a> : [Xe] 4f14 5d3 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d3</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">11</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">74 W <a href="/facts/Tungsten/WYwbNDYX">tungsten</a> : [Xe] 4f14 5d4 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d4</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">12</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">75 Re <a href="/facts/Rhenium/TzyqJYEn">rhenium</a> : [Xe] 4f14 5d5 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d5</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">13</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">76 Os <a href="/facts/Osmium/1TjXD69n">osmium</a> : [Xe] 4f14 5d6 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d6</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">14</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">77 Ir <a href="/facts/Iridium/TFQutoj1">iridium</a> : [Xe] 4f14 5d7 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d7</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">15</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">78 Pt <a href="/facts/Platinum/qJC6lQf7">platinum</a> : [Xe] 4f14 5d9 6s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d9</td><td></td><td>6s1</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">17</td><td colspan="3">1</td><td colspan="2"></td></tr><tr><th colspan="19">79 Au <a href="/facts/Gold/1znknojp">gold</a> : [Xe] 4f14 5d10 6s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s1</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">1</td><td colspan="2"></td></tr><tr><th colspan="19">80 Hg <a href="/facts/Mercury_(element)/WlxfoHva">mercury</a> : [Xe] 4f14 5d10 6s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td></td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">2</td><td colspan="2"></td></tr><tr><th colspan="19">81 Tl <a href="/facts/Thallium/v35pGMJB">thallium</a> : [Xe] 4f14 5d10 6s2 6p1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p1</td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">3</td><td colspan="2"></td></tr><tr><th colspan="19">82 Pb <a href="/facts/Lead/EYljasJN">lead</a> : [Xe] 4f14 5d10 6s2 6p2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p2</td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">4</td><td colspan="2"></td></tr><tr><th colspan="19">83 Bi <a href="/facts/Bismuth/75FLjkoX">bismuth</a> : [Xe] 4f14 5d10 6s2 6p3</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p3</td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">5</td><td colspan="2"></td></tr><tr><th colspan="19">84 Po <a href="/facts/Polonium/G4rzsyjP">polonium</a> : [Xe] 4f14 5d10 6s2 6p4</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p4</td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">6</td><td colspan="2"></td></tr><tr><th colspan="19">85 At <a href="/facts/Astatine/AlbHPBK5">astatine</a> : [Xe] 4f14 5d10 6s2 6p5</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p5</td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">7</td><td colspan="2"></td></tr><tr><th colspan="19">86 Rn <a href="/facts/Radon/0V9arWKl">radon</a> : [Xe] 4f14 5d10 6s2 6p6</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p6</td><td></td><td></td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">8</td><td colspan="2"></td></tr><tr><th colspan="19">87 Fr <a href="/facts/Francium/P3Rz4gDP">francium</a> : [Rn] 7s1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p6</td><td></td><td>7s1</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">8</td><td colspan="2">1</td></tr><tr><th colspan="19">88 Ra <a href="/facts/Radium/VWo5gkzn">radium</a> : [Rn] 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">89 Ac <a href="/facts/Actinium/GMQtJ4Gm">actinium</a> : [Rn] 6d1 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p6</td><td>6d1</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">9</td><td colspan="2">2</td></tr><tr><th colspan="19">90 Th <a href="/facts/Thorium/ysdWH470">thorium</a> : [Rn] 6d2 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td></td><td>6s2</td><td>6p6</td><td>6d2</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">18</td><td colspan="3">10</td><td colspan="2">2</td></tr><tr><th colspan="19">91 Pa <a href="/facts/Protactinium/v87VqTPf">protactinium</a> : [Rn] 5f2 6d1 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f2</td><td>6s2</td><td>6p6</td><td>6d1</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">20</td><td colspan="3">9</td><td colspan="2">2</td></tr><tr><th colspan="19">92 U <a href="/facts/Uranium/n2sGWBzU">uranium</a> : [Rn] 5f3 6d1 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f3</td><td>6s2</td><td>6p6</td><td>6d1</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">21</td><td colspan="3">9</td><td colspan="2">2</td></tr><tr><th colspan="19">93 Np <a href="/facts/Neptunium/pwp7Yvds">neptunium</a> : [Rn] 5f4 6d1 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f4</td><td>6s2</td><td>6p6</td><td>6d1</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">22</td><td colspan="3">9</td><td colspan="2">2</td></tr><tr><th colspan="19">94 Pu <a href="/facts/Plutonium/4bUw9zH3">plutonium</a> : [Rn] 5f6 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f6</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">24</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">95 Am <a href="/facts/Americium/rxL9Yc64">americium</a> : [Rn] 5f7 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f7</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">25</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">96 Cm <a href="/facts/Curium/LMyWXg8l">curium</a> : [Rn] 5f7 6d1 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f7</td><td>6s2</td><td>6p6</td><td>6d1</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">25</td><td colspan="3">9</td><td colspan="2">2</td></tr><tr><th colspan="19">97 Bk <a href="/facts/Berkelium/ePryEYy3">berkelium</a> : [Rn] 5f9 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f9</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">27</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">98 Cf <a href="/facts/Californium/AJVjoVut">californium</a> : [Rn] 5f10 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f10</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">28</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">99 Es <a href="/facts/Einsteinium/RePoIVN9">einsteinium</a> : [Rn] 5f11 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f11</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">29</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">100 Fm <a href="/facts/Fermium/Us3rnvG5">fermium</a> : [Rn] 5f12 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f12</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">30</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">101 Md <a href="/facts/Mendelevium/bEHBu18F">mendelevium</a> : [Rn] 5f13 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f13</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">31</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">102 No <a href="/facts/Nobelium/syRkloSw">nobelium</a> : [Rn] 5f14 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">8</td><td colspan="2">2</td></tr><tr><th colspan="19">103 Lr <a href="/facts/Lawrencium/HVw2LVlx">lawrencium</a> : [Rn] 5f14 7s2 7p1</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td></td><td>7s2</td><td>7p1</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">8</td><td colspan="2">3</td></tr><tr><th colspan="19">104 Rf <a href="/facts/Rutherfordium/44LSnv9p">rutherfordium</a> : [Rn] 5f14 6d2 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d2</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">10</td><td colspan="2">2</td></tr><tr><th colspan="19">105 Db <a href="/facts/Dubnium/3CHC1lEt">dubnium</a> : [Rn] 5f14 6d3 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d3</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">11</td><td colspan="2">2</td></tr><tr><th colspan="19">106 Sg <a href="/facts/Seaborgium/ejs0Ap6P">seaborgium</a> : [Rn] 5f14 6d4 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d4</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">12</td><td colspan="2">2</td></tr><tr><th colspan="19">107 Bh <a href="/facts/Bohrium/epvp3GWM">bohrium</a> : [Rn] 5f14 6d5 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d5</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">13</td><td colspan="2">2</td></tr><tr><th colspan="19">108 Hs <a href="/facts/Hassium/t0bgGzwt">hassium</a> : [Rn] 5f14 6d6 7s2</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d6</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">14</td><td colspan="2">2</td></tr><tr><th colspan="19">109 Mt <a href="/facts/Meitnerium/pKaD3sRY">meitnerium</a> : [Rn] 5f14 6d7 7s2 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d7</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">15</td><td colspan="2">2</td></tr><tr><th colspan="19">110 Ds <a href="/facts/Darmstadtium/etmwTLmP">darmstadtium</a> : [Rn] 5f14 6d8 7s2 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d8</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">16</td><td colspan="2">2</td></tr><tr><th colspan="19">111 Rg <a href="/facts/Roentgenium/LEhvJaJQ">roentgenium</a> : [Rn] 5f14 6d9 7s2 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d9</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">17</td><td colspan="2">2</td></tr><tr><th colspan="19">112 Cn <a href="/facts/Copernicium/EhgyBkg0">copernicium</a> : [Rn] 5f14 6d10 7s2 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td></td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">2</td></tr><tr><th colspan="19">113 Nh <a href="/facts/Nihonium/sb09p5dv">nihonium</a> : [Rn] 5f14 6d10 7s2 7p1 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td>7p1</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">3</td></tr><tr><th colspan="19">114 Fl <a href="/facts/Flerovium/Aa7uGMuG">flerovium</a> : [Rn] 5f14 6d10 7s2 7p2 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td>7p2</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">4</td></tr><tr><th colspan="19">115 Mc <a href="/facts/Moscovium/QhSEr0H5">moscovium</a> : [Rn] 5f14 6d10 7s2 7p3 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td>7p3</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">5</td></tr><tr><th colspan="19">116 Lv <a href="/facts/Livermorium/nQc1FE6E">livermorium</a> : [Rn] 5f14 6d10 7s2 7p4 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td>7p4</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">6</td></tr><tr><th colspan="19">117 Ts <a href="/facts/Tennessine/eGCBDvEr">tennessine</a> : [Rn] 5f14 6d10 7s2 7p5 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td>7p5</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">7</td></tr><tr><th colspan="19">118 Og <a href="/facts/Oganesson/zs5MQDjV">oganesson</a> : [Rn] 5f14 6d10 7s2 7p6 (predicted)</th></tr><tr><td>1s2</td><td>2s2</td><td>2p6</td><td>3s2</td><td>3p6</td><td>3d10</td><td>4s2</td><td>4p6</td><td>4d10</td><td>4f14</td><td>5s2</td><td>5p6</td><td>5d10</td><td>5f14</td><td>6s2</td><td>6p6</td><td>6d10</td><td>7s2</td><td>7p6</td></tr><tr><td>2</td><td colspan="2">8</td><td colspan="3">18</td><td colspan="4">32</td><td colspan="4">32</td><td colspan="3">18</td><td colspan="2">8</td></tr></tbody></table> Group 18 element (<a href="/facts/Noble_gases/j0yHMEAE">noble gas</a>), has a complete shell. Complete shells are referred to as "[Ar]" for argon etc.