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

243Am     Half-life Boson, 95p 148n 7388.381532217 y Spin 5/2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 100% α 5.43881MeV 239Np 3.7×10-9% SF N/A Variable Hide Ultimate Decay Products Yield Nuclide 100.276313667% 207Pb 8.900000000048×10-8% 205Tl 8.00001071204×10-10% 206Pb 9.900000000049×10-13% 208Pb Atomic Weight 243.06138108 Abundance None Mass Excess 57.176109MeV Binding Energy 7.530169MeV Magnetic Moment 1.53 μ Quadrupole Moment 4.3   Show Isotope Symbols. 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..