In the isotope (^{70}{30}\text{Zn}), the atomic number is 30, which means it has 30 protons and 30 electrons (as it is neutral). The mass number is 70, so the number of neutrons can be calculated by subtracting the number of protons from the mass number: (70 - 30 = 40). Therefore, (^{70}{30}\text{Zn}) has 30 protons, 40 neutrons, and 30 electrons.
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