Hexhexseptium (Hhs)

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