Octnilpentium (Onp)

Octnilpentium is the systematic name of the theoretical ۸۰۵. element in the periodic table with a symbol of Onp and atomic number of 805. Octnilpentium, also known as element 805, has هشتصد و پنج protons in its nucleus, and هشتصد و پنج electrons in its shells.