H Home Background Color: He Li Be Gadolinium Main Page Black White Gray B C N O F Ne Na Mg Gadolinium Pictures Page Al Si P S Cl Ar K Ca Gadolinium 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 Gadolinium (click to see decay chain): 134Gd  135Gd  136Gd  137Gd  138Gd  139Gd  140Gd  141Gd  142Gd  143Gd  144Gd  145Gd  146Gd  147Gd  148Gd  149Gd  150Gd  151Gd  152Gd  153Gd  154Gd  155Gd  156Gd  157Gd  158Gd  159Gd  160Gd  161Gd  162Gd  163Gd  164Gd  165Gd  166Gd  167Gd  168Gd  169Gd

139Gd     Half-life Fermion, 64p 75n 5.8 s Spin 9/2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% β+ 6.847MeV 139Eu Unknown β+p N/A 138Sm Hide Ultimate Decay Products Yield Nuclide 100% 139La Unknown 138Ba Atomic Weight 138.93824 Abundance None Mass Excess -57.529MeV Binding Energy 8.125MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Element Pictures. Also show decay chains leading to this isotope. Show only decays with probability >0.1%.

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