Septseptseptium (Sss)

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