Octpentpentium (Opp)

Octpentpentium is the systematic name of the theoretical 855:e element in the periodic table with a symbol of Opp and atomic number of 855. Octpentpentium, also known as element 855, has åtta­hundra­femtio­fem protons in its nucleus, and åtta­hundra­femtio­fem electrons in its shells.