Ennennseptium (Ees)

Ennennseptium is the systematic name of the theoretical 997-и element in the periodic table with a symbol of Ees and atomic number of 997. Ennennseptium, also known as element 997, has деветстотин деветдесет и седем protons in its nucleus, and деветстотин деветдесет и седем electrons in its shells.