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 அறுநூறு நாற்பது protons in its nucleus, and அறுநூறு நாற்பது electrons in its shells.