Hexsepttrium (Hst)

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