Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
23795Am142   Americium
J(π)=5/2(-)
T1/2=1.23 h
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess 46.571
(0.059)
47.040 -1.870
BE 1792.009 1791.540
BE/A 7.561 7.559
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.215
β3= 0.000
β4= 0.106
β6= 0.001
Excited States[1]
click on a plot to process it
Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6196.11
β- - decay-2676.39
β+ - decay455.50
e-capture1477.50
1p - decay-3620.85
2p - decay-9051.87
1n - decay-7542.30
2n - decay-14197.84
- - decay-6616.93
β-,n-9355.28
β-,2n-17582.56
β-,d-11190.91
β-,t-12839.76
β-4094.02
β-,n,α-2288.36
EC,p-4097.47
EC,2p-8927.69
EC,α7225.81
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-energies
γ-energies
    
[1] National Nuclear Data Center, Evaluated Nuclear Structure Data File, https://www.nndc.bnl.gov/ensdf/.
[2] M. Wang, G. Audi, A.H. Wapstra, F.G. Kondev, M. MacCormick, X. Xu, and B. Pfeiffer, Chinese Physics C, 2012, vol. 36, pp. 1603-2014.
[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.
[4] P. Möller, A.J. Sierk, T. Ichikawa, H. Sagawa, Atomic Data and Nuclear Data Tables, 2016, vol. 109-110, pp. 1-204.
[5] N.J. Stone, https://www-nds.iaea.org/publications/indc/indc-nds-0658/; Atomic Data and Nuclear Data Tables, 2016, vol. 111-112, pp. 1–28.
[6] H. de Vries, C.W. de Jager, C. de Vries, Atomic Data and Nuclear Data Tables, 1987, vol. 36, pp. 495-536.
[7] B. Pritychenko, M. Birch, B. Singh, M. Horoi, Atomic Data and Nuclear Data Tables, 2016, vol. 107, pp. 1–139; 2017, vol. 114, pp. 371–374.
[8] T. Kibedi and R.H. Spear, Atomic Data and Nuclear Data Tables, 2002, vol. 80, pp. 35-82.