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Periodic Table of Elements

Am - Americium

Americium Menu

Nuclides / Isotopes

Nuc-
lide		Atomic
Mass		NNAbun
%		SpinHalf LifeDMDTBR
%		Decay
Energy
(MeV)
Am231231.046136Syn      
Am232232.047137Syn 79sECPu232~98 
 79saNp228~27.200
Am233233.046138Syn  ECPu23499.964.170
  aNp2300.046.870
Am234234.048139Syn 2.32m    
Am235235.048140Syn 15m    
Am236236.05141Syn  aNp232 6.450
  ECPu236 3.280
Am237237.05142Syn5/2-73mECPu23799.981.730
 73maNp2330.036.250
meta state 2.400MeVSyn 5nsSF <=100 
Am238238.052143Syn1+98mECPu238>99.992.260
 98maNp2340.00016.040
Am239239.053144Syn5/2-11.9hECPu23499.990.803
 11.9haNp2350.015.924
Am240240.0553145Syn3-50.8haNp2361.9E -45.710
 50.8hEC   
 50.8hECPu240 1.379
meta state 3.000MeVSyn 0.924msSF <=100 
Am241241.0568146Syn5/2-432.2ySF 4E -10 
 432.2yaNp237 5.638
meta state 2.200MeVSyn 1.2us    
Am242242.0595147Syn1-16.02hb-Cm24282.700.665
 16.02hECPu24217.300.751
meta state 0.048MeVSyn5-141yIT 99.540.049
 141yaNp2380.465.637
 141ySF 1.5E -8 
meta state 2.200MeVSyn 14msSF ~100 
 14msaNp238<1.57.788
 14msIT >02.200
Am243243.0614148Syn5/2-7370ySF 3.7E -9 
 7370yaNp239 5.438
Am244244.0643149Syn6-10.1hb-Cm244 1.428
meta state 0.000MeV 0.000MeVSyn ~6.5usSF <=100 
meta state 0.088MeVSyn1+~26mb-Cm24499.961.516
 ~26mECPu2440.040.164
Am245245.0665150Syn5/2+2.05hb-Cm245 0.894
Am246246.0698151Syn7-39mb-Cm246 2.376
meta state 0.000MeVSyn2-25mITAm246<0.01 
 25mb-Cm246 2.376
Am247247.072152Syn5/223mb-Cm247 1.700
Am248248.076153Syn  b-Cm248 3.100
Am249249.078154Syn      
NuclidePotential Parent Nuclides
Am231 None known
Am232 None known
Am233 None known
Am234 Pu243 (Syn)
Am235 None known
Am236 None known
Am237 None known
meta state 2.400MeV None known
Am238 Cm238 (Syn)
Am239 Bk243 (Syn)
Am240 Bk244 (Syn) Cm240 (Syn)
meta state 3.000MeV None known
Am241 Bk245 (Syn) Cm241 (Syn) Pu241 (Syn)
meta state 2.200MeV None known
Am242 Bk246 (Syn)
meta state 0.048MeV None known
meta state 2.200MeV None known
Am243 Bk247 (Syn) Cm243 (Syn)
Am244 Bk248 (Syn) Bk248m (Syn)
meta state 0.000MeV 0.000MeV None known
meta state 0.088MeV None known
Am245 Bk249 (Syn) Pu245 (Syn)
Am246 Am246m (Syn) Pu246 (Syn)
meta state 0.000MeV None known
Am247 Bk251 (Syn) Pu247 (Syn)
Am248 None known
Am249 None known

Key:

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