Octoctunium (Oou)

Octoctunium is the systematic name of the theoretical 881e element in the periodic table with a symbol of Oou and atomic number of 881. Octoctunium, also known as element 881, has acht­honderd­een­en­tachtig protons in its nucleus, and acht­honderd­een­en­tachtig electrons in its shells.