Ennoctseptium (Eos)

Ennoctseptium is the systematic name of the theoretical 987'inci element in the periodic table with a symbol of Eos and atomic number of 987. Ennoctseptium, also known as element 987, has doqquz yüz səqsən yeddi protons in its nucleus, and doqquz yüz səqsən yeddi electrons in its shells.