Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
21286Rn126   Radon
J(π)=0+
T1/2=23.90 m
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -8.659243
(0.003181)
-8.850 -8.160
BE 1652.497 1652.688
BE/A 7.795 7.796
<R2ch>1/2 = 5.5915 ± 0.0176 fm [3]
Charge-density Distribution [6]

β2= 0.000
β3= 0.000
β4= 0.000
β6= 0.000
Excited States[1]
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Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6385.01
β- - decay-5143.43
β+ - decay-1053.49
e-capture-31.49
1p - decay-4301.41
2p - decay-7284.55
1n - decay-7975.53
2n - decay-15197.31
- - decay-8460.50
β-,n-12590.69
β-,2n-21469.30
β-,d-12190.37
β-,t-14680.18
β-1385.52
β-,n,α-5928.50
EC,p-3516.15
EC,2p-8445.81
EC,α7785.53
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-energies
 
μ (nm) Q (b) E* (keV)
[-0.18(2)]1694
4.0(2)1502
5.45(5)1640
+7.15(2)1694
7.16(6)1694
15.0(4)3358
17.9(2)4067
17.9(3)4067
15.8(2)6167+x
15.8(2)6167+x
17.8(5)7135+x
17.0(8)7871+x
19.71(9)8571+x
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.