Octennoctium (Oeo)
Octennoctium is the systematic name of the theoretical 898वाँ element in the periodic table with a symbol of Oeo and atomic number of 898. Octennoctium, also known as element 898, has आठ सौ अट्ठानबे protons in its nucleus, and आठ सौ अट्ठानबे electrons in its shells.