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 Uub Uut Uuq Uup Uuh Uus Uuo

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.y Spin 5/2 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 100.% α 5438.81keV 239Np 3.7×10-9% SF N/A Variable Hide Ultimate Decay Products Yield Nuclide 100.27631366700267% 207Pb 8.90000000004806×10-8% 205Tl 8.00001071204×10-10% 206Pb 9.9000000000495×10-13% 208Pb Atomic Weight 243.06138108 Abundance None Mass Excess 57.176109MeV Binding Energy 7.530169MeV Magnetic Moment 1.53μ Quadrupole Moment 4.3   Show Element Pictures. Also show decay chains leading to this isotope. Show only decays with probability >0.1%. 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..