Pentpentoctium (Ppo)

Pentpentoctium is the systematic name of the theoretical 558. element in the periodic table with a symbol of Ppo and atomic number of 558. Pentpentoctium, also known as element 558, has fem­hundrede og otte­og­halvtreds protons in its nucleus, and fem­hundrede og otte­og­halvtreds electrons in its shells.