Hexsepttrium (Hst)
Hexsepttrium is the systematic name of the theoretical ۶۷۳. element in the periodic table with a symbol of Hst and atomic number of 673. Hexsepttrium, also known as element 673, has ششصد و هفتاد و سه protons in its nucleus, and ششصد و هفتاد و سه electrons in its shells.