Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
12861Pm67   Promethium
J(π)=5,6,7
T1/2=1.00 s
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -47.786
(0.298)		 -48.920 1.030
BE 1033.192 1034.326
BE/A 8.072 8.081
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.330
β3= 0.000
β4= 0.030
β6= -0.018
Excited States[1]
click on a plot to process it 		Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay2940.10
β- - decay-9053.96
β+ - decay11505.97
e-capture12527.97
1p - decay461.00
2p - decay-2040.00
1n - decay-11071.30
2n - decay-24731.60
2β- - decay-24739.93
β-,n-23401.26
β-,2n-35372.56
β-,d-21724.66
β-,t-27119.76
β-,α-5685.86
β-,n,α-19916.16
EC,p9467.96
EC,2p8456.52
EC,α14705.06
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
       
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.