H Home Background Color: He Li Be Americium Main Page Black White Gray B C N O F Ne Na Mg Americium Pictures Page Al Si P S Cl Ar K Ca Americium 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 Americium (click to see decay chain): 231Am  232Am  233Am  234Am  235Am  236Am  237Am  238Am  239Am  240Am  241Am  242Am  243Am  244Am  245Am  246Am  247Am  248Am  249Am

238Am     Half-life Fermion, 95p 143n 1.638888888889 h Spin 1 Parity 1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% β+ 1.2361MeV 238Pu 0.0001% α 6.0417MeV 234Np Hide Ultimate Decay Products Yield Nuclide 100.0442588032% 206Pb 1.890379890378×10-6% 205Tl 2.600106600104×10-9% 208Pb 7.688000628×10-17% 160Dy 5.04402450371×10-21% 140Ce Unknown 172Yb Unknown 152Sm Unknown 180Hf Unknown 176Hf Unknown 156Gd Unknown 168Er Unknown 164Dy Atomic Weight 238.051984324 Abundance None Mass Excess 48.423087MeV Binding Energy 7.555578MeV Magnetic Moment N/A Quadrupole Moment N/A   Show Element Pictures. Also show decay chains leading to this isotope. Show all decays, even very low-probability.

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