Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
25499Es155   Einsteinium
J(π)=(7+)
T1/2=275.70 d
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 81.992151
(0.004229)		 81.720 -3.490
BE 1890.670 1890.942
BE/A 7.444 7.445
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.240
β3= 0.000
β4= 0.012
β6= -0.031
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6615.72
β- - decay1087.84
β+ - decay-371.91
e-capture650.09
1p - decay-4599.12
2p - decay-11120.85
1n - decay-5093.79
2n - decay-11445.70
2β- - decay-1461.78
β-,n-5428.03
β-,2n-10967.99
β-,d-8438.76
β-,t-7471.16
β-,α8395.33
β-,n,α1770.02
EC,p-6225.88
EC,2p-11641.88
EC,α6576.92
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 84.2 keV
T1/2 = 1.64 d
α
0.32%		β-
98%		EC
0.076%		IT
3%		SF
0.045%
α-energies
β- endpoint energies
γ-energies
σ (b)
Absorption 1994.00
Fission 1826.00
 
μ (nm) Q (b) E* (keV)
+3.7(5)78
4.4(4)0
2.90(7)78
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.