Septsepttrium (Sst)

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