Hexseptoctium (Hso)

Hexseptoctium is the systematic name of the theoretical 678'inci element in the periodic table with a symbol of Hso and atomic number of 678. Hexseptoctium, also known as element 678, has altı yüz yetmiş səkkiz protons in its nucleus, and altı yüz yetmiş səkkiz electrons in its shells.