Septoctunium (Sou)

Septoctunium is the systematic name of the theoretical 781. element in the periodic table with a symbol of Sou and atomic number of 781. Septoctunium, also known as element 781, has septyni šimtai aštuoniasdešimt vienas protons in its nucleus, and septyni šimtai aštuoniasdešimt vienas electrons in its shells.