Ennennseptium (Ees)

Ennennseptium is the systematic name of the theoretical 997-ші element in the periodic table with a symbol of Ees and atomic number of 997. Ennennseptium, also known as element 997, has тоғыз жүз тоқсан жеті protons in its nucleus, and тоғыз жүз тоқсан жеті electrons in its shells.