Octpentnilium (Opn)

Octpentnilium is the systematic name of the theoretical ۸۵۰. element in the periodic table with a symbol of Opn and atomic number of 850. Octpentnilium, also known as element 850, has هشتصد و پنجاه protons in its nucleus, and هشتصد و پنجاه electrons in its shells.