Hexennseptium (Hes)
Hexennseptium is the systematic name of the theoretical thứ 697 element in the periodic table with a symbol of Hes and atomic number of 697. Hexennseptium, also known as element 697, has sáu trăm chín mươi bảy protons in its nucleus, and sáu trăm chín mươi bảy electrons in its shells.