Hexseptoctium (Hso)

Hexseptoctium is the systematic name of the theoretical thứ 678 element in the periodic table with a symbol of Hso and atomic number of 678. Hexseptoctium, also known as element 678, has sáu trăm bảy mươi tám protons in its nucleus, and sáu trăm bảy mươi tám electrons in its shells.