Hexhexquadium (Hhq)
Hexhexquadium is the systematic name of the theoretical ke-664 element in the periodic table with a symbol of Hhq and atomic number of 664. Hexhexquadium, also known as element 664, has enam ratus enam puluh empat protons in its nucleus, and enam ratus enam puluh empat electrons in its shells.