Hexseptoctium (Hso)

Hexseptoctium is the systematic name of the theoretical 678-и element in the periodic table with a symbol of Hso and atomic number of 678. Hexseptoctium, also known as element 678, has шестстотин седемдесет и осем protons in its nucleus, and шестстотин седемдесет и осем electrons in its shells.