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