Septsepttrium (Sst)

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