# Inner electrons 151 # Outer electrons 96 # Protons 247 An-Isotope 96:247 Approval Stats BE - Actual 1852.98 BE - Nucleon 7501.93 Decay A 100 Element Curium Half Life 15600000 Y Magnetic Dipole 0.36 Mass Actual 247.07 Mass Calculated 248.93 Mass H Norm 245.15 Stability Unstable