Septennseptium (Ses)
Septennseptium is the systematic name of the theoretical 797-и element in the periodic table with a symbol of Ses and atomic number of 797. Septennseptium, also known as element 797, has седемстотин деветдесет и седем protons in its nucleus, and седемстотин деветдесет и седем electrons in its shells.