Hexseptoctium (Hso)

Hexseptoctium is the systematic name of the theoretical 678ste element in the periodic table with a symbol of Hso and atomic number of 678. Hexseptoctium, also known as element 678, has seshonderd agt-en-sewentig protons in its nucleus, and seshonderd agt-en-sewentig electrons in its shells.