Septseptunium (Ssu)

Septseptunium is the systematic name of the theoretical 771-и element in the periodic table with a symbol of Ssu and atomic number of 771. Septseptunium, also known as element 771, has седемстотин седемдесет и едно protons in its nucleus, and седемстотин седемдесет и едно electrons in its shells.