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