Octseptnilium (Osn)

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