Hexquadquadium (Hqq)

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