Ennennoctium (Eeo)
Ennennoctium is the systematic name of the theoretical 998. element in the periodic table with a symbol of Eeo and atomic number of 998. Ennennoctium, also known as element 998, has üheksasada üheksakümmend kaheksa protons in its nucleus, and üheksasada üheksakümmend kaheksa electrons in its shells.