Pentunoctium (Puo)

Pentunoctium is the systematic name of the theoretical ที่ 518 element in the periodic table with a symbol of Puo and atomic number of 518. Pentunoctium, also known as element 518, has ห้า​ร้อย​สิบ​แปด protons in its nucleus, and ห้า​ร้อย​สิบ​แปด electrons in its shells.