Ennoctseptium (Eos)

Ennoctseptium is the systematic name of the theoretical 987e element in the periodic table with a symbol of Eos and atomic number of 987. Ennoctseptium, also known as element 987, has negen­honderd­zeven­en­tachtig protons in its nucleus, and negen­honderd­zeven­en­tachtig electrons in its shells.