The first nuclear reaction used to obtain copernicium in 1996 was: 20882Pb + 7030Zn ----------- 278112Cn ---------277112Cn+ 1 n
Ununbium (now , Copernicium) was produced first from the reaction20882Pb + 7030Zn → 278112Cn → 277112Cn + 10nIn May 2000, the GSI successfully repeated the experiment to synthesize a further atom of copernicium-277. This reaction was repeated at RIKEN using the Search for a Super-Heavy Element Using a Gas-Filled Recoil Separator set-up in 2004 to synthesize two further atoms and confirm the decay data reported by the GSI team