Septsepttrium (Sst)

Septsepttrium is the systematic name of the theoretical 773. element in the periodic table with a symbol of Sst and atomic number of 773. Septsepttrium, also known as element 773, has sjey­hundrað­og­sjeyti­tríggir protons in its nucleus, and sjey­hundrað­og­sjeyti­tríggir electrons in its shells.