Pentbinilium (Pbn)

Pentbinilium is the systematic name of the theoretical ที่ 520 element in the periodic table with a symbol of Pbn and atomic number of 520. Pentbinilium, also known as element 520, has ห้า​ร้อย​ยี่​สิบ protons in its nucleus, and ห้า​ร้อย​ยี่​สิบ electrons in its shells.