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 átta­hundrað­og­sjey protons in its nucleus, and átta­hundrað­og­sjey electrons in its shells.