Septseptseptium (Sss)

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