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 sechs­honnert­véierzeg protons in its nucleus, and sechs­honnert­véierzeg electrons in its shells.