Hexseptennium (Hse)

Hexseptennium is the systematic name of the theoretical 679. element in the periodic table with a symbol of Hse and atomic number of 679. Hexseptennium, also known as element 679, has sechs­hundert­neun­und­siebzig protons in its nucleus, and sechs­hundert­neun­und­siebzig electrons in its shells.