Ennennoctium (Eeo)

Ennennoctium is the systematic name of the theoretical 998e element in the periodic table with a symbol of Eeo and atomic number of 998. Ennennoctium, also known as element 998, has negen­honderd­acht­en­negentig protons in its nucleus, and negen­honderd­acht­en­negentig electrons in its shells.