Ennennennium (Eee)

Ennennennium is the systematic name of the theoretical 999ste element in the periodic table with a symbol of Eee and atomic number of 999. Ennennennium, also known as element 999, has negehonderd nege-en-negentig protons in its nucleus, and negehonderd nege-en-negentig electrons in its shells.