Hexpentseptium (Hps)

Hexpentseptium is the systematic name of the theoretical 657e element in the periodic table with a symbol of Hps and atomic number of 657. Hexpentseptium, also known as element 657, has zes­honderd­zeven­en­vijftig protons in its nucleus, and zes­honderd­zeven­en­vijftig electrons in its shells.