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

242Am     Half-life Fermion, 95p 147n 16.01944444444 h Spin 1 Parity -1 Hide Decay Modes Probability Mode Decay Energy Daughter 82.7% β- 664.467keV 242Cm 17.3% ϵ 751.295keV 242Pu Hide Ultimate Decay Products Yield Nuclide 100.0441587591% 206Pb 1.890378000001×10-6% 205Tl 2.600113097001×10-9% 208Pb 6.357976519359×10-17% 160Dy 4.17140826457×10-21% 140Ce Unknown 172Yb Unknown 152Sm Unknown 180Hf Unknown 176Hf Unknown 156Gd Unknown 168Er Unknown 164Dy Atomic Weight 242.059549159 Abundance None Mass Excess 55.469685MeV Binding Energy 7.534984MeV Magnetic Moment 0.3879 μ Quadrupole Moment -2.4   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..