Septseptseptium (Sss)
Septseptseptium is the systematic name of the theoretical 777-и element in the periodic table with a symbol of Sss and atomic number of 777. Septseptseptium, also known as element 777, has седемстотин седемдесет и седем protons in its nucleus, and седемстотин седемдесет и седем electrons in its shells.