Octpentpentium (Opp)
Octpentpentium is the systematic name of the theoretical 855. element in the periodic table with a symbol of Opp and atomic number of 855. Octpentpentium, also known as element 855, has astoņsimt piecdesmit pieci protons in its nucleus, and astoņsimt piecdesmit pieci electrons in its shells.