Septseptunium (Ssu)

Septseptunium is the systematic name of the theoretical 771'инчи element in the periodic table with a symbol of Ssu and atomic number of 771. Septseptunium, also known as element 771, has жети жүз жетимиш бир protons in its nucleus, and жети жүз жетимиш бир electrons in its shells.