Octseptnilium (Osn)

Octseptnilium is the systematic name of the theoretical thứ 870 element in the periodic table with a symbol of Osn and atomic number of 870. Octseptnilium, also known as element 870, has tám trăm bảy mươi protons in its nucleus, and tám trăm bảy mươi electrons in its shells.