Ennoctennium (Eoe)

Ennoctennium is the systematic name of the theoretical 989. element in the periodic table with a symbol of Eoe and atomic number of 989. Ennoctennium, also known as element 989, has neun­hundert­neun­und­achtzig protons in its nucleus, and neun­hundert­neun­und­achtzig electrons in its shells.