Ennoctennium (Eoe)
Ennoctennium is the systematic name of the theoretical ۹۸۹. element in the periodic table with a symbol of Eoe and atomic number of 989. Ennoctennium, also known as element 989, has نهصد و هشتاد و نه protons in its nucleus, and نهصد و هشتاد و نه electrons in its shells.