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 kilenc­száz­kilencven­nyolc protons in its nucleus, and kilenc­száz­kilencven­nyolc electrons in its shells.