Hexhexseptium (Hhs)

Hexhexseptium is the systematic name of the theoretical 667e element in the periodic table with a symbol of Hhs and atomic number of 667. Hexhexseptium, also known as element 667, has zes­honderd­zeven­en­zestig protons in its nucleus, and zes­honderd­zeven­en­zestig electrons in its shells.