Penttrioctium (Pto)

Penttrioctium is the systematic name of the theoretical 538. element in the periodic table with a symbol of Pto and atomic number of 538. Penttrioctium, also known as element 538, has пʼятсот тридцять вісім protons in its nucleus, and пʼятсот тридцять вісім electrons in its shells.