Septseptnilium (Ssn)

Septseptnilium is the systematic name of the theoretical 770-шы element in the periodic table with a symbol of Ssn and atomic number of 770. Septseptnilium, also known as element 770, has жеті жүз жетпіс protons in its nucleus, and жеті жүз жетпіс electrons in its shells.