Octpentoctium (Opo)

Octpentoctium is the systematic name of the theoretical 858वाँ element in the periodic table with a symbol of Opo and atomic number of 858. Octpentoctium, also known as element 858, has आठ सौ अट्ठावन protons in its nucleus, and आठ सौ अट्ठावन electrons in its shells.