Septseptnilium (Ssn)

Septseptnilium is the systematic name of the theoretical 770'inci element in the periodic table with a symbol of Ssn and atomic number of 770. Septseptnilium, also known as element 770, has yeddi yüz yetmiş protons in its nucleus, and yeddi yüz yetmiş electrons in its shells.