Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
7434Se40   Selenium
J(π)=0+
T1/2=stable
Abundance: 0.89% 4
  Experiment
[2]		 Theory
[4]		 Sh.corr.
[4]
Mass Excess -72.213202
(0.000015)		 -72.310 4.560
BE 642.891 642.988
BE/A 8.688 8.689
<R2ch>1/2 = 4.07 ± 0.02 fm [3]
Charge-density Distribution [6]

β2= -0.238
β3= 0.000
β4= -0.023
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 - decay-4076.27
β- - decay-6924.92
β+ - decay-2375.18
e-capture-1353.18
1p - decay-8549.45
2p - decay-14205.30
1n - decay-12057.11
2n - decay-20487.62
2β- - decay-9881.30
β-,n-16636.88
β-,2n-29288.45
β-,d-17480.69
β-,t-24016.46
β-,α-10296.23
β-,n,α-19597.20
EC,p-8204.71
EC,2p-18202.98
EC,α-5728.01
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
  
σ (b)
Capture 51.80
 
μ (nm) Q (b) E* (keV)
2.0(4)1363
1.1(2)1269
+0.86(5)635
-0.36(7)635
B(E2)↑ = 0.357 ( 20) e2b2,    β 0  = 0.2902 (80)
2

B(E3)↑ = 0.021 ( 5) e2b3,    β 0  = 0.14 (0)
3

  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.