Hexseptoctium (Hso)

Hexseptoctium is the systematic name of the theoretical ۶۷۸. element in the periodic table with a symbol of Hso and atomic number of 678. Hexseptoctium, also known as element 678, has ششصد و هفتاد و هشت protons in its nucleus, and ششصد و هفتاد و هشت electrons in its shells.