Pentpentoctium (Ppo)

Pentpentoctium is the systematic name of the theoretical ที่ 558 element in the periodic table with a symbol of Ppo and atomic number of 558. Pentpentoctium, also known as element 558, has ห้า​ร้อย​ห้า​สิบ​แปด protons in its nucleus, and ห้า​ร้อย​ห้า​สิบ​แปด electrons in its shells.