Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
15063Eu87   Europium
J(π)=5-
T1/2=36.90 y
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -74.791823
(0.006322)		 -75.110 1.340
BE 1236.202 1236.520
BE/A 8.241 8.243
<R2ch>1/2 = 5.0296 ± 0.0108 fm [3]
Charge-density Distribution [6]

β2= 0.194
β3= 0.000
β4= 0.051
β6= -0.002
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay2237.48
β- - decay971.81
β+ - decay1236.61
e-capture2258.61
1p - decay-4945.73
2p - decay-12504.75
1n - decay-6422.64
2n - decay-14635.05
2β- - decay-3686.10
β-,n-7736.34
β-,2n-14665.07
β-,d-11628.11
β-,t-12197.19
β-,α3779.52
β-,n,α-4636.76
EC,p-6017.18
EC,2p-11962.05
EC,α3708.99
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 41.7 keV
T1/2 = 12.80 h
β-
89%		β+, EC
11%		IT
0.00000005%
β- endpoint energies
β+ endpoint energies
γ-energies
 
μ (nm) Q (b) E* (keV)
+1.13(5)0
+2.708(11)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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.