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 חמש מאות שלושים ושמונה protons in its nucleus, and חמש מאות שלושים ושמונה electrons in its shells.