Septtrioctium (Sto)

Septtrioctium is the systematic name of the theoretical 738e element in the periodic table with a symbol of Sto and atomic number of 738. Septtrioctium, also known as element 738, has zeven­honderd­acht­en­dertig protons in its nucleus, and zeven­honderd­acht­en­dertig electrons in its shells.