Octpentunium (Opu)

Octpentunium is the systematic name of the theoretical 851वाँ element in the periodic table with a symbol of Opu and atomic number of 851. Octpentunium, also known as element 851, has आठ सौ इक्यावन protons in its nucleus, and आठ सौ इक्यावन electrons in its shells.