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 devyni šimtai devyniasdešimt septyni protons in its nucleus, and devyni šimtai devyniasdešimt septyni electrons in its shells.