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 எண்நூறு ஐம்பது ஐந்து protons in its nucleus, and எண்நூறு ஐம்பது ஐந்து electrons in its shells.