Octnilseptium (Ons)

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