Ennunseptium (Eus)
Ennunseptium is the systematic name of the theoretical 917. element in the periodic table with a symbol of Eus and atomic number of 917. Ennunseptium, also known as element 917, has devyni šimtai septyniolika protons in its nucleus, and devyni šimtai septyniolika electrons in its shells.