Ennennseptium (Ees)

Ennennseptium is the systematic name of the theoretical 997. element in the periodic table with a symbol of Ees and atomic number of 997. Ennennseptium, also known as element 997, has ni­hundrede og syv­og­halvfems protons in its nucleus, and ni­hundrede og syv­og­halvfems electrons in its shells.