Ennoctennium (Eoe)

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