Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
21389Ac124   Actinium
J(π)=
T1/2=738.00 ms
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess 6.156263
(0.052115)
5.990 -4.410
BE 1643.406 1643.572
BE/A 7.716 7.716
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= -0.063
β3= 0.000
β4= -0.010
β6= -0.009
Excited States[1]
click on a plot to process it
Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay7499.32
β- - decay-5961.72
β+ - decay4776.29
e-capture5798.29
1p - decay-934.06
2p - decay-4281.92
1n - decay-9192.96
2n - decay-17188.55
- - decay-13506.80
β-,n-14012.87
β-,2n-23893.01
β-,d-14181.62
β-,t-17583.13
β-1877.30
β-,n,α-6054.90
EC,p2383.01
EC,2p333.24
EC,α12660.15
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.