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 syv­hundrede og en­og­halvfjerds protons in its nucleus, and syv­hundrede og en­og­halvfjerds electrons in its shells.