Ennoctennium (Eoe)

Ennoctennium is the systematic name of the theoretical 989e element in the periodic table with a symbol of Eoe and atomic number of 989. Ennoctennium, also known as element 989, has negen­honderd­negen­en­tachtig protons in its nucleus, and negen­honderd­negen­en­tachtig electrons in its shells.