H Home Background Color: He Li Be Uranium Main Page Black White Gray B C N O F Ne Na Mg Uranium Pictures Page Al Si P S Cl Ar K Ca Uranium 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 Uranium (click to see decay chain): 217U  218U  219U  220U  221U  222U  223U  224U  225U  226U  227U  228U  229U  230U  231U  232U  233U  234U  235U  236U  237U  238U  239U  240U  241U  242U

231U     Half-life Fermion, 92p 139n 4.166666666667 d Spin 5/2 Parity -1 Show Decay Modes Hide Ultimate Decay Products Yield Nuclide 100.2803247141% 207Pb 8.900356×10-8% 205Tl 9.9×10-13% 208Pb Atomic Weight 231.036293704 Abundance None Mass Excess 33.807368MeV Binding Energy 7.613381MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Isotope Symbols. Show only decay products of this isotope. Show Decay Image Smaller.

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