# Inner electrons 175 # Outer electrons 114 # Protons 289 An-Isotope 114:289 Approval Stats BE - Actual 2065.77 BE - Nucleon 7148.00 Decay A 100 Element Flerovium Half Life 2.7 s Mass Actual 289.19 Mass Calculated 291.26 Mass H Norm 286.95 Stability Unstable
