Hexsepttrium (Hst)

Hexsepttrium is the systematic name of the theoretical 673. element in the periodic table with a symbol of Hst and atomic number of 673. Hexsepttrium, also known as element 673, has sechs­hundert­drei­und­siebzig protons in its nucleus, and sechs­hundert­drei­und­siebzig electrons in its shells.