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Group 10 element
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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_4_element/BgDFfE26">4</a></th><td><a href="/facts/Nickel/KwMCHYRP">Nickel</a> (Ni)28 <a href="/facts/Transition_metal/0slGWoLQ">Transition metal</a></td></tr><tr><th><a href="/facts/Period_5_element/xLJUWWDS">5</a></th><td><a href="/facts/Palladium/AXMwDFxs">Palladium</a> (Pd)46 <a href="/facts/Transition_metal/0slGWoLQ">Transition metal</a></td></tr><tr><th><a href="/facts/Period_6_element/9YleCXwf">6</a></th><td><a href="/facts/Platinum/qJC6lQf7">Platinum</a> (Pt)78 <a href="/facts/Transition_metal/0slGWoLQ">Transition metal</a></td></tr><tr><th><a href="/facts/Period_7_element/H5QuVHGQ">7</a></th><td><a href="/facts/Darmstadtium/etmwTLmP">Darmstadtium</a> (Ds)110 unknown chemical properties</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>Group 10, numbered by current <a href="/facts/IUPAC/2AV6myCK">IUPAC</a> style, is the <a href="/facts/Periodic_table_group/YGBcUabv">group</a> of <a href="/facts/Chemical_element/0jducgWD">chemical elements</a> in the <a href="/facts/Periodic_table/umdGIfUb">periodic table</a> that consists of <a href="/facts/Nickel/KwMCHYRP">nickel</a> (Ni), <a href="/facts/Palladium/AXMwDFxs">palladium</a> (Pd), <a href="/facts/Platinum/qJC6lQf7">platinum</a> (Pt), and <a href="/facts/Darmstadtium/etmwTLmP">darmstadtium</a> (Ds). All are <a href="/facts/D-block/BbzD5jUU">d-block</a> <a href="/facts/Transition_metal/0slGWoLQ">transition metals</a>. All known <a href="/facts/Isotopes/KD9B1y6o">isotopes</a> of darmstadtium are radioactive with short half-lives, and are not known to occur in nature; only minute quantities have been synthesized in laboratories. </p>