Hexquadnilium (Hqn)

Hexquadnilium is the systematic name of the theoretical ที่ 640 element in the periodic table with a symbol of Hqn and atomic number of 640. Hexquadnilium, also known as element 640, has หก​ร้อย​สี่​สิบ protons in its nucleus, and หก​ร้อย​สี่​สิบ electrons in its shells.