Octnilpentium (Onp)

Octnilpentium is the systematic name of the theoretical thứ 805 element in the periodic table with a symbol of Onp and atomic number of 805. Octnilpentium, also known as element 805, has tám trăm lẻ năm protons in its nucleus, and tám trăm lẻ năm electrons in its shells.