Octnilseptium (Ons)

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