Ennennunium (Eeu)

Ennennunium is the systematic name of the theoretical 991. element in the periodic table with a symbol of Eeu and atomic number of 991. Ennennunium, also known as element 991, has תשע מאות תשעים ואחת protons in its nucleus, and תשע מאות תשעים ואחת electrons in its shells.