Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
20585At120   Astatine
J(π)=9/2-
T1/2=26.90 m
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -12.970252
(0.01513)		 -13.020 -5.340
BE 1601.091 1601.141
BE/A 7.810 7.810
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= -0.073
β3= 0.000
β4= 0.002
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 - decay6019.51
β- - decay-5256.37
β+ - decay3516.92
e-capture4538.92
1p - decay-1918.45
2p - decay-6024.01
1n - decay-9166.12
2n - decay-16950.33
2β- - decay-11660.37
β-,n-13058.54
β-,2n-22953.54
β-,d-13943.39
β-,t-17329.21
β-,α1129.77
β-,n,α-6512.10
EC,p386.29
EC,2p-2762.28
EC,α9864.21
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-energies
β+ endpoint energies
γ-energies
    
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.