Pentpentoctium (Ppo)

Pentpentoctium is the systematic name of the theoretical 558'инчи element in the periodic table with a symbol of Ppo and atomic number of 558. Pentpentoctium, also known as element 558, has беш жүз элүү сегиз protons in its nucleus, and беш жүз элүү сегиз electrons in its shells.