Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
25699Es157   Einsteinium
J(π)=(1+,0-)
T1/2=25.40 m
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess 87.187
(0.1)
86.850 -3.020
BE 1901.618 1901.955
BE/A 7.428 7.430
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.240
β3= 0.000
β4= -0.001
β6= -0.023
Excited States[1]
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Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6227.10
β- - decay1699.67
β+ - decay-876.03
e-capture145.97
1p - decay-4913.00
2p - decay-11784.00
1n - decay-4974.88
2n - decay-10947.75
- - decay-269.93
β-,n-4685.23
β-,2n-9859.92
β-,d-7940.82
β-,t-6777.41
β-8726.89
β-,n,α2554.51
EC,p-7059.03
EC,2p-12958.04
EC,α5706.06
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 0+x keV
T1/2 = 7.60 h
β-
100%
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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.