Ennpentoctium (Epo)

Ennpentoctium is the systematic name of the theoretical 958:e element in the periodic table with a symbol of Epo and atomic number of 958. Ennpentoctium, also known as element 958, has nio­hundra­femtio­åtta protons in its nucleus, and nio­hundra­femtio­åtta electrons in its shells.