Hexhexquadium (Hhq)
Hexhexquadium is the systematic name of the theoretical 664-и element in the periodic table with a symbol of Hhq and atomic number of 664. Hexhexquadium, also known as element 664, has шестстотин шейсет и четири protons in its nucleus, and шестстотин шейсет и четири electrons in its shells.