Octnilpentium (Onp)

Octnilpentium is the systematic name of the theoretical ที่ 805 element in the periodic table with a symbol of Onp and atomic number of 805. Octnilpentium, also known as element 805, has แปด​ร้อย​ห้า protons in its nucleus, and แปด​ร้อย​ห้า electrons in its shells.