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