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 kuusi­sataa­kuusi­kymmentä­seitsemän protons in its nucleus, and kuusi­sataa­kuusi­kymmentä­seitsemän electrons in its shells.