Octpentnilium (Opn)

Octpentnilium is the systematic name of the theoretical ที่ 850 element in the periodic table with a symbol of Opn and atomic number of 850. Octpentnilium, also known as element 850, has แปด​ร้อย​ห้า​สิบ protons in its nucleus, and แปด​ร้อย​ห้า​สิบ electrons in its shells.