Septseptennium (Sse)

Septseptennium is the systematic name of the theoretical 779. element in the periodic table with a symbol of Sse and atomic number of 779. Septseptennium, also known as element 779, has syv­hundrede og ni­og­halvfjerds protons in its nucleus, and syv­hundrede og ni­og­halvfjerds electrons in its shells.