Septseptseptium (Sss)

Septseptseptium is the systematic name of the theoretical 777ú element in the periodic table with a symbol of Sss and atomic number of 777. Septseptseptium, also known as element 777, has seacht gcéad seachtó a seacht protons in its nucleus, and seacht gcéad seachtó a seacht electrons in its shells.