Octunpentium (Oup)

Octunpentium is the systematic name of the theoretical ที่ 815 element in the periodic table with a symbol of Oup and atomic number of 815. Octunpentium, also known as element 815, has แปด​ร้อย​สิบ​ห้า protons in its nucleus, and แปด​ร้อย​สิบ​ห้า electrons in its shells.