Octpentseptium (Ops)

Octpentseptium is the systematic name of the theoretical thứ 857 element in the periodic table with a symbol of Ops and atomic number of 857. Octpentseptium, also known as element 857, has tám trăm năm mươi bảy protons in its nucleus, and tám trăm năm mươi bảy electrons in its shells.