Octpentpentium (Opp)

Octpentpentium is the systematic name of the theoretical 855'inci element in the periodic table with a symbol of Opp and atomic number of 855. Octpentpentium, also known as element 855, has səkkiz yüz əlli beş protons in its nucleus, and səkkiz yüz əlli beş electrons in its shells.