Octnilseptium (Ons)

Octnilseptium is the systematic name of the theoretical 807. element in the periodic table with a symbol of Ons and atomic number of 807. Octnilseptium, also known as element 807, has kahdeksan­sataa­seitsemän protons in its nucleus, and kahdeksan­sataa­seitsemän electrons in its shells.