Septseptennium (Sse)

Septseptennium is the systematic name of the theoretical 779ste element in the periodic table with a symbol of Sse and atomic number of 779. Septseptennium, also known as element 779, has sewehonderd nege-en-sewentig protons in its nucleus, and sewehonderd nege-en-sewentig electrons in its shells.