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 šesť­sto štyridsať­štyri protons in its nucleus, and šesť­sto štyridsať­štyri electrons in its shells.