Hexquadquadium (Hqq)
Hexquadquadium is the systematic name of the theoretical 644. element in the periodic table with a symbol of Hqq and atomic number of 644. Hexquadquadium, also known as element 644, has gjashtëqind e dyzet e katër protons in its nucleus, and gjashtëqind e dyzet e katër electrons in its shells.