Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
20781Tl126   Thallium
J(π)=1/2+
T1/2=4.77 m
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -21.033402
(0.005494)		 -20.410 -12.470
BE 1628.426 1627.803
BE/A 7.867 7.864
<R2ch>1/2 = 5.4853 ± 0.0027 fm [3]
Charge-density Distribution [6]

β2= 0.000
β3= 0.000
β4= 0.000
β6= 0.000
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay-314.82
β- - decay1418.16
β+ - decay-5567.99
e-capture-4545.99
1p - decay-7377.20
2p - decay-16841.40
1n - decay-6851.86
2n - decay-13355.65
2β- - decay-979.22
β-,n-5319.60
β-,2n-13406.25
β-,d-10348.72
β-,t-11637.55
β-,α1810.52
β-,n,α-4184.07
EC,p-14107.44
EC,2p-22645.44
EC,α-3831.34
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 1348.18 keV
T1/2 = 1.33 s
IT
100%
β- endpoint energies
γ-energies
 
μ (nm) Q (b) E* (keV)
+1.876(5)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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.