Octseptnilium (Osn)

Octseptnilium is the systematic name of the theoretical 870-шы element in the periodic table with a symbol of Osn and atomic number of 870. Octseptnilium, also known as element 870, has сегіз жүз жетпіс protons in its nucleus, and сегіз жүз жетпіс electrons in its shells.