Octpentpentium (Opp)

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