Hexennoctium (Heo)

Hexennoctium is the systematic name of the theoretical 698e element in the periodic table with a symbol of Heo and atomic number of 698. Hexennoctium, also known as element 698, has zes­honderd­acht­en­negentig protons in its nucleus, and zes­honderd­acht­en­negentig electrons in its shells.