Hexhextrium (Hht)

Hexhextrium is the systematic name of the theoretical 663. element in the periodic table with a symbol of Hht and atomic number of 663. Hexhextrium, also known as element 663, has seks­hundrað­og­seksti­tríggir protons in its nucleus, and seks­hundrað­og­seksti­tríggir electrons in its shells.