Octbinilium (Obn)
Octbinilium is the systematic name of the theoretical ที่ 820 element in the periodic table with a symbol of Obn and atomic number of 820. Octbinilium, also known as element 820, has แปดร้อยยี่สิบ protons in its nucleus, and แปดร้อยยี่สิบ electrons in its shells.