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 šeši šimtai septyniasdešimt trys protons in its nucleus, and šeši šimtai septyniasdešimt trys electrons in its shells.