Hexhexquadium (Hhq)

Hexhexquadium is the systematic name of the theoretical 664:e element in the periodic table with a symbol of Hhq and atomic number of 664. Hexhexquadium, also known as element 664, has sex­hundra­sextio­fyra protons in its nucleus, and sex­hundra­sextio­fyra electrons in its shells.