Septseptunium (Ssu)

Septseptunium is the systematic name of the theoretical 771. element in the periodic table with a symbol of Ssu and atomic number of 771. Septseptunium, also known as element 771, has septyni šimtai septyniasdešimt vienas protons in its nucleus, and septyni šimtai septyniasdešimt vienas electrons in its shells.