Octnilnilium (Onn)

Octnilnilium is the systematic name of the theoretical ที่ 800 element in the periodic table with a symbol of Onn and atomic number of 800. Octnilnilium, also known as element 800, has แปด​ร้อย protons in its nucleus, and แปด​ร้อย electrons in its shells.