Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
25399Es154   Einsteinium
J(π)=7/2+
T1/2=20.47 d
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess 79.014646
(0.002551)
78.680 -3.650
BE 1885.577 1885.911
BE/A 7.453 7.454
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.251
β3= 0.000
β4= 0.014
β6= -0.030
Excited States[1]
click on a plot to process it
Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6739.17
β- - decay-334.24
β+ - decay-1309.66
e-capture-287.66
1p - decay-4309.60
2p - decay-10792.68
1n - decay-6351.90
2n - decay-11641.50
- - decay-2160.28
β-,n-5874.19
β-,2n-13081.84
β-,d-8634.56
β-,t-9162.12
β-6863.82
β-,n,α1278.52
EC,p-6809.39
EC,2p-12212.72
EC,α5838.30
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-energies
γ-energies
σ (b)
Capture 184.00
 
μ (nm) Q (b) E* (keV)
+6.7(8)0
+4.10(7)0
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.