Pentpentoctium (Ppo)

Pentpentoctium is the systematic name of the theoretical ۵۵۸. element in the periodic table with a symbol of Ppo and atomic number of 558. Pentpentoctium, also known as element 558, has پانصد و پنجاه و هشت protons in its nucleus, and پانصد و پنجاه و هشت electrons in its shells.