Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
22689Ac137   Actinium
J(π)=(1)
T1/2=1.22 d
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 24.310487
(0.003318)		 24.690 -0.760
BE 1730.179 1729.799
BE/A 7.656 7.654
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.154
β3= -0.139
β4= 0.085
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 - decay5535.82
β- - decay1113.17
β+ - decay-381.12
e-capture640.88
1p - decay-4972.82
2p - decay-12062.61
1n - decay-5399.41
2n - decay-12067.11
2β- - decay-1722.91
β-,n-6071.33
β-,2n-11826.02
β-,d-9060.17
β-,t-8465.97
β-,α7564.05
β-,n,α850.09
EC,p-6799.35
EC,2p-12712.65
EC,α5511.52
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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.