Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
20685At121   Astatine
J(π)=(5)+
T1/2=30.60 m
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -12.428986
(0.015064)		 -12.600 -6.220
BE 1608.621 1608.792
BE/A 7.809 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 - decay5886.89
β- - decay-3313.56
β+ - decay4737.34
e-capture5759.34
1p - decay-2208.78
2p - decay-6361.41
1n - decay-7530.03
2n - decay-16696.15
2β- - decay-11186.43
β-,n-12786.40
β-,2n-20588.57
β-,d-13689.22
β-,t-15216.22
β-,α3070.28
β-,n,α-6400.27
EC,p1346.14
EC,2p-1897.65
EC,α11086.30
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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.