H Home Background Color: He Li Be Promethium Main Page Black White Gray B C N O F Ne Na Mg Promethium Pictures Page Al Si P S Cl Ar K Ca Promethium Technical Data Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Isotopes of Promethium (click to see decay chain): 126Pm  127Pm  128Pm  129Pm  130Pm  131Pm  132Pm  133Pm  134Pm  135Pm  136Pm  137Pm  138Pm  139Pm  140Pm  141Pm  142Pm  143Pm  144Pm  145Pm  146Pm  147Pm  148Pm  149Pm  150Pm  151Pm  152Pm  153Pm  154Pm  155Pm  156Pm  157Pm  158Pm  159Pm  160Pm  161Pm  162Pm  163Pm

137Pm     Half-life Boson, 61p 76n 2.4 m Spin 11/2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter Unknown β+ 4.4851MeV 137Nd Hide Ultimate Decay Products Yield Nuclide Unknown 137Ba Atomic Weight 136.920479493 Abundance None Mass Excess -74.072875MeV Binding Energy 8.263651MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Isotope Symbols. Show only decay products of this isotope.

Click any isotope in diagram to see its data. Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..