Hexquadnilium (Hqn)

Hexquadnilium is the systematic name of the theoretical ۶۴۰. element in the periodic table with a symbol of Hqn and atomic number of 640. Hexquadnilium, also known as element 640, has ششصد و چهل protons in its nucleus, and ششصد و چهل electrons in its shells.