Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
257100Fm157   Fermium
J(π)=(9/2+)
T1/2=100.50 d
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 88.590741
(0.006445)		 88.140 -3.240
BE 1907.503 1907.954
BE/A 7.422 7.424
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.241
β3= 0.000
β4= -0.013
β6= -0.026
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6863.56
β- - decay-406.39
β+ - decay-1834.29
e-capture-812.29
1p - decay-5885.26
2p - decay-10798.26
1n - decay-4967.93
2n - decay-11352.82
2β- - decay-1659.62
β-,n-6937.52
β-,2n-12396.16
β-,d-8345.89
β-,t-7263.38
β-,α7151.23
β-,n,α799.33
EC,p-5739.29
EC,2p-13058.04
EC,α5236.81
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-energies
γ-energies
σ (b)
Fission 2950.00
 		   
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.