Hexseptennium (Hse)

Hexseptennium is the systematic name of the theoretical 679ste element in the periodic table with a symbol of Hse and atomic number of 679. Hexseptennium, also known as element 679, has seshonderd nege-en-sewentig protons in its nucleus, and seshonderd nege-en-sewentig electrons in its shells.