Ennennseptium (Ees)
Ennennseptium is the systematic name of the theoretical 997वाँ element in the periodic table with a symbol of Ees and atomic number of 997. Ennennseptium, also known as element 997, has नौ सौ सत्तानबे protons in its nucleus, and नौ सौ सत्तानबे electrons in its shells.