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 penki šimtai penkiasdešimt aštuoni protons in its nucleus, and penki šimtai penkiasdešimt aštuoni electrons in its shells.