# Inner electrons 148 # Outer electrons 96 # Protons 244 An-Isotope 96:244 Approval Stats BE - Actual 1835.84 BE - Nucleon 7523.95 Decay A 100, SF 0.000137 Element Curium Half Life 18.11 Y Mass Actual 244.06 Mass Calculated 245.91 Mass H Norm 242.17 Stability Unstable