Octquadnilium (Oqn)

Octquadnilium is the systematic name of the theoretical 840'инчи element in the periodic table with a symbol of Oqn and atomic number of 840. Octquadnilium, also known as element 840, has сегиз жүз кырк protons in its nucleus, and сегиз жүз кырк electrons in its shells.