Editing Group 12 element (section)

===Copernicium===
The heaviest known group 12 element, copernicium, was [[discovery of the chemical elements|first created]] on February 9, 1996, at the [[Gesellschaft für Schwerionenforschung]] (GSI) in [[Darmstadt]], Germany, by Sigurd Hofmann, [[Victor Ninov]] et al.<ref name="Hoffman">{{Cite journal|title=The new element 112 |journal=[[Zeitschrift für Physik A]]|author=Hofmann, S.|volume=354|issue=1|year=1996|pages=229–230 |doi=10.1007/BF02769517 |display-authors=etal |bibcode=1996ZPhyA.354..229H|s2cid=119975957}}</ref> It was then officially named by the [[International Union of Pure and Applied Chemistry]] (IUPAC) after [[Nicolaus Copernicus]] on February 19, 2010, the 537th anniversary of Copernicus' birth.<ref>{{cite journal |title=Element 112 is Named Copernicium |doi=10.1351/PAC-REP-08-03-05 |last1=Barber |first1=Robert C. |last2=Gäggeler |first2=Heinz W. |last3=Karol |first3=Paul J. |last4=Nakahara |first4=Hiromichi |last5=Vardaci |first5=Emanuele |last6=Vogt |first6=Erich |journal=Pure and Applied Chemistry |volume=81 |issue=7 |pages=1331–1343 |year=2009 |doi-access=free }}</ref>