Octpentpentium (Opp)

Octpentpentium is the systematic name of the theoretical ۸۵۵. element in the periodic table with a symbol of Opp and atomic number of 855. Octpentpentium, also known as element 855, has هشتصد و پنجاه و پنج protons in its nucleus, and هشتصد و پنجاه و پنج electrons in its shells.