Copernicium was first made on February 9, 1996 at the Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany. Copernicium was made by nuclear fusion of a zinc atom with a lead atom. The zinc nuclei was bombarded on to a lead target in a machine named a heavy ion accelerator.
The element was made in 2000 and 2004 at the Joint Institute for Nuclear Research in Russia.
In May 2006 in the Joint Institute for Nuclear Research checked that it had been made using a different method. They identified the last atoms that were made from radioactive decay of copernicium.
In February 2010 IUPAC officially approved the name copernicium and symbol Cn.[14]
↑ 1.01.11.21.31.41.5Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN978-1-4020-3555-5.
↑Hu, Shu-Xian; Zou, Wenli (23 September 2021). "Stable copernicium hexafluoride (CnF6) with an oxidation state of VI+". Physical Chemistry Chemical Physics. 2022 (24): 321–325. doi:10.1039/D1CP04360A. PMID34889909.
↑Oganessian, Yu. Ts.; Utyonkov, V. K.; Ibadullayev, D.; et al. (2022). "Investigation of 48Ca-induced reactions with 242Pu and 238U targets at the JINR Superheavy Element Factory". Physical Review C. 106 (24612). Bibcode:2022PhRvC.106b4612O. doi:10.1103/PhysRevC.106.024612. S2CID251759318.
↑Utyonkov, V. K.; Brewer, N. T.; Oganessian, Yu. Ts.; Rykaczewski, K. P.; Abdullin, F. Sh.; Dimitriev, S. N.; Grzywacz, R. K.; Itkis, M. G.; Miernik, K.; Polyakov, A. N.; Roberto, J. B.; Sagaidak, R. N.; Shirokovsky, I. V.; Shumeiko, M. V.; Tsyganov, Yu. S.; Voinov, A. A.; Subbotin, V. G.; Sukhov, A. M.; Karpov, A. V.; Popeko, A. G.; Sabel'nikov, A. V.; Svirikhin, A. I.; Vostokin, G. K.; Hamilton, J. H.; Kovrinzhykh, N. D.; Schlattauer, L.; Stoyer, M. A.; Gan, Z.; Huang, W. X.; Ma, L. (30 January 2018). "Neutron-deficient superheavy nuclei obtained in the 240Pu+48Ca reaction". Physical Review C. 97 (14320): 1–10. Bibcode:2018PhRvC..97a4320U. doi:10.1103/PhysRevC.97.014320.