Hexquadnilium (Hqn)

Hexquadnilium is the systematic name of the theoretical 640. element in the periodic table with a symbol of Hqn and atomic number of 640. Hexquadnilium, also known as element 640, has εξακόσια σαράντα protons in its nucleus, and εξακόσια σαράντα electrons in its shells.