H Home Background Color: He Li Be Europium Main Page Black White Gray B C N O F Ne Na Mg Europium Pictures Page Al Si P S Cl Ar K Ca Europium 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 Europium (click to see decay chain): 130Eu  131Eu  132Eu  133Eu  134Eu  135Eu  136Eu  137Eu  138Eu  139Eu  140Eu  141Eu  142Eu  143Eu  144Eu  145Eu  146Eu  147Eu  148Eu  149Eu  150Eu  151Eu  152Eu  153Eu  154Eu  155Eu  156Eu  157Eu  158Eu  159Eu  160Eu  161Eu  162Eu  163Eu  164Eu  165Eu  166Eu  167Eu

139Eu     Half-life Boson, 63p 76n 17.9 s Spin 11/2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% β+ 5.96MeV 139Sm Show Ultimate Decay Products Atomic Weight 138.92979228 Abundance None Mass Excess -65.39807MeV Binding Energy 8.187218MeV 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..