Hexquadennium (Hqe)

Hexquadennium is the systematic name of the theoretical ที่ 649 element in the periodic table with a symbol of Hqe and atomic number of 649. Hexquadennium, also known as element 649, has หก​ร้อย​สี่​สิบ​เก้า protons in its nucleus, and หก​ร้อย​สี่​สิบ​เก้า electrons in its shells.