Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
22889Ac139   Actinium
J(π)=3+
T1/2=6.15 h
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 28.896386
(0.002491)		 29.260 -0.470
BE 1741.735 1741.372
BE/A 7.639 7.638
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.174
β3= -0.097
β4= 0.099
β6= 0.010
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay4676.39
β- - decay2124.10
β+ - decay-1067.85
e-capture-45.85
1p - decay-5572.07
2p - decay-13222.17
1n - decay-5026.00
2n - decay-11556.70
2β- - decay-27.99
β-,n-4981.20
β-,2n-10443.53
β-,d-8549.77
β-,t-7691.97
β-,α7644.19
β-,n,α1165.41
EC,p-8078.43
EC,2p-14428.84
EC,α4026.35
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.