Septseptoctium (Sso)
Septseptoctium is the systematic name of the theoretical 778. element in the periodic table with a symbol of Sso and atomic number of 778. Septseptoctium, also known as element 778, has syvhundrede og otteoghalvfjerds protons in its nucleus, and syvhundrede og otteoghalvfjerds electrons in its shells.