Septseptnilium (Ssn)

Septseptnilium is the systematic name of the theoretical thứ 770 element in the periodic table with a symbol of Ssn and atomic number of 770. Septseptnilium, also known as element 770, has bảy trăm bảy mươi protons in its nucleus, and bảy trăm bảy mươi electrons in its shells.