Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
13961Pm78   Promethium
J(π)=(5/2)+
T1/2=4.15 m
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -77.500608
(0.013593)
-77.190 1.420
BE 1151.691 1151.380
BE/A 8.286 8.283
<R2ch>1/2 = 
Charge-density Distribution [6]

β2= 0.151
β3= 0.000
β4= -0.029
β6= 0.005
Excited States[1]
click on a plot to process it
Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay1010.35
β- - decay-5120.35
β+ - decay3492.00
e-capture4514.00
1p - decay-2771.30
2p - decay-8876.77
1n - decay-10631.42
2n - decay-19570.36
- - decay-12102.50
β-,n-14074.11
β-,2n-25616.65
β-,d-16563.43
β-,t-21269.87
β--3711.86
β-,n,α-12350.34
EC,p-1657.91
EC,2p-6159.84
EC,α4690.81
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 188.7 keV
T1/2 = 180.00 ms
IT
99.94%
β+, EC
0.06%
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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.