Septpentoctium (Spo)

Septpentoctium is the systematic name of the theoretical 758e element in the periodic table with a symbol of Spo and atomic number of 758. Septpentoctium, also known as element 758, has zeven­honderd­acht­en­vijftig protons in its nucleus, and zeven­honderd­acht­en­vijftig electrons in its shells.