Hexhextrium (Hht)

Hexhextrium is the systematic name of the theoretical ที่ 663 element in the periodic table with a symbol of Hht and atomic number of 663. Hexhextrium, also known as element 663, has หก​ร้อย​หก​สิบ​สาม protons in its nucleus, and หก​ร้อย​หก​สิบ​สาม electrons in its shells.