Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
21787Fr130   Francium
J(π)=9/2-
T1/2=19.00 µs
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess 4.314943
(0.006548)		 4.910 -3.340
BE 1679.097 1678.502
BE/A 7.738 7.735
<R2ch>1/2 = 5.6534 ± 0.0175 fm [3]
Charge-density Distribution [6]

β2= 0.079
β3= -0.126
β4= 0.054
β6= 0.021
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay8469.21
β- - decay-1572.74
β+ - decay-366.02
e-capture655.98
1p - decay-3227.29
2p - decay-9008.20
1n - decay-6727.70
2n - decay-12146.08
2β- - decay-4388.75
β-,n-7047.68
β-,2n-14361.68
β-,d-9139.14
β-,t-9676.62
β-,α7587.96
β-,n,α2478.02
EC,p-5231.62
EC,2p-9722.96
EC,α8543.09
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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.