Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
12455Cs69   Cesium
J(π)=1+
T1/2=30.90 s
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -81.731334
(0.008304)
-81.780 2.520
BE 1039.546 1039.595
BE/A 8.383 8.384
<R2ch>1/2 = 4.7828 ± 0.0062 fm [3]
Charge-density Distribution [6]

β2= 0.252
β3= 0.000
β4= -0.014
β6= -0.006
Excited States[1]
click on a plot to process it
Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay-403.05
β- - decay-2641.52
β+ - decay4907.68
e-capture5929.68
1p - decay-3771.64
2p - decay-10228.89
1n - decay-8758.99
2n - decay-19729.17
- - decay-11472.65
β-,n-14147.65
β-,2n-23264.95
β-,d-16722.24
β-,t-19578.77
β--1983.78
β-,n,α-13433.09
EC,p-1076.66
EC,2p-5994.93
EC,α5211.92
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 462.63 keV
T1/2 = 6.30 s
IT
100%
β+ endpoint energies
γ-energies
 
μ (nm) Q (b) E* (keV)
+0.674(7)0
+0.673(3)0
-0.69(4)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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.