Hexquadennium (Hqe)

Hexquadennium is the systematic name of the theoretical ۶۴۹. element in the periodic table with a symbol of Hqe and atomic number of 649. Hexquadennium, also known as element 649, has ششصد و چهل و نه protons in its nucleus, and ششصد و چهل و نه electrons in its shells.