Septseptseptium (Sss)
Septseptseptium is the systematic name of the theoretical 777. element in the periodic table with a symbol of Sss and atomic number of 777. Septseptseptium, also known as element 777, has siedemset siedemdziesiąt siedem protons in its nucleus, and siedemset siedemdziesiąt siedem electrons in its shells.