Penttrioctium (Pto)

Penttrioctium is the systematic name of the theoretical ۵۳۸. element in the periodic table with a symbol of Pto and atomic number of 538. Penttrioctium, also known as element 538, has پانصد و سی و هشت protons in its nucleus, and پانصد و سی و هشت electrons in its shells.