Octpentseptium (Ops)

Octpentseptium is the systematic name of the theoretical ۸۵۷. element in the periodic table with a symbol of Ops and atomic number of 857. Octpentseptium, also known as element 857, has هشتصد و پنجاه و هفت protons in its nucleus, and هشتصد و پنجاه و هفت electrons in its shells.