Hexhextrium (Hht)

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