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