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Pnictogen
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<table><tbody><tr><th colspan="2">↓ <a href="/facts/Period_(periodic_table)/WpGUFh5V">Period</a></th></tr><tr><th><a href="/facts/Period_2_element/1ajRWfrb">2</a></th><td><a href="/facts/Nitrogen/Nf1QpGDz">Nitrogen</a> (N)7 <a href="/facts/Other_nonmetal/0oejKuzK">Other nonmetal</a></td></tr><tr><th><a href="/facts/Period_3_element/1BE0Nc0K">3</a></th><td><a href="/facts/Phosphorus/27xCeIqs">Phosphorus</a> (P)15 <a href="/facts/Other_nonmetal/0oejKuzK">Other nonmetal</a></td></tr><tr><th><a href="/facts/Period_4_element/BgDFfE26">4</a></th><td><a href="/facts/Arsenic/k1c4f44D">Arsenic</a> (As)33 <a href="/facts/Metalloid/uMFVXuTq">Metalloid</a></td></tr><tr><th><a href="/facts/Period_5_element/xLJUWWDS">5</a></th><td><a href="/facts/Antimony/YsA7lVgT">Antimony</a> (Sb)51 <a href="/facts/Metalloid/uMFVXuTq">Metalloid</a></td></tr><tr><th><a href="/facts/Period_6_element/9YleCXwf">6</a></th><td><a href="/facts/Bismuth/75FLjkoX">Bismuth</a> (Bi)83 <a href="/facts/Other_metal/wjp3aeGn">Other metal</a></td></tr><tr><th><a href="/facts/Period_7_element/H5QuVHGQ">7</a></th><td><a href="/facts/Moscovium/QhSEr0H5">Moscovium</a> (Mc)115 other metal</td></tr><tr><td colspan="2"><p><i>Legend</i></p><table><tbody><tr><td><a href="/facts/Primordial_element/lFAUqHDv">primordial element</a></td></tr><tr><td><a href="/facts/Synthetic_element/azU9Nr1m">synthetic element</a></td></tr></tbody></table></td></tr></tbody></table> <p>The pnictogens (/ˈpnɪktədʒən/ or /ˈnɪktədʒən/; from <a href="/facts/Ancient_Greek_language/LIK7NlUh">Ancient Greek</a> <i> </i>πνῑ́γω<i> (pnígo)</i> 'to choke' and <i> -gen</i> 'generator') are the <a href="/facts/Chemical_element/0jducgWD">chemical elements</a> in <a href="/facts/Group_(periodic_table)/YGBcUabv">group</a> 15 of the <a href="/facts/Periodic_table/umdGIfUb">periodic table</a>. This group is also known as the nitrogen group or nitrogen family. Group 15 consists of the elements <a href="/facts/Nitrogen/Nf1QpGDz">nitrogen</a> (N), <a href="/facts/Phosphorus/27xCeIqs">phosphorus</a> (P), <a href="/facts/Arsenic/k1c4f44D">arsenic</a> (As), <a href="/facts/Antimony/YsA7lVgT">antimony</a> (Sb), <a href="/facts/Bismuth/75FLjkoX">bismuth</a> (Bi), and <a href="/facts/Moscovium/QhSEr0H5">moscovium</a> (Mc). </p><p>Since 1988, it has been called Group 15 by the <a href="/facts/International_Union_of_Pure_and_Applied_Chemistry/2AV6myCK">IUPAC</a>. Before that, in America it was called Group VA, owing to a text by H. C. Deming and the <a href="/facts/Sargent-Welch_Scientific_Company/0S9XhRya">Sargent-Welch Scientific Company</a>, while in Europe it was called Group VB, which the IUPAC had recommended in 1970. (Pronounced "group five A" and "group five B"; "V" is the <a href="/facts/Roman_numerals/7BA8nn78">Roman numeral</a> 5). In <a href="/facts/Semiconductor/zFf3mGTE">semiconductor</a> physics, it is still usually called Group V. The "five" ("V") in the historical names comes from the "<a href="/facts/Valence_(chemistry)/ck7cHByj">pentavalency</a>" of nitrogen, reflected by the <a href="/facts/Stoichiometry/I5p9cJzV">stoichiometry</a> of <a href="/facts/Chemical_compound/37FXqqtv">compounds</a> such as <a href="/facts/Dinitrogen_pentoxide/2uAxoRpM">N2O5</a>. They have also been called the pentels. </p>