Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
20684Po122   Polonium
J(π)=0+
T1/2=8.80 d
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -18.18836
(0.003981)
-18.220 -7.590
BE 1615.163 1615.195
BE/A 7.841 7.841
<R2ch>1/2 = 5.548 ± 0.0189 fm [3]
Charge-density Distribution [6]

β2= 0.000
β3= 0.000
β4= 0.000
β6= 0.000
Excited States[1]
click on a plot to process it
Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay5326.96
β- - decay-5759.34
β+ - decay817.36
e-capture1839.36
1p - decay-4413.20
2p - decay-7656.99
1n - decay-8750.45
2n - decay-15990.16
- - decay-9072.89
β-,n-13289.37
β-,2n-22455.49
β-,d-12983.22
β-,t-15827.36
β-127.55
β-,n,α-7269.87
EC,p-1707.68
EC,2p-8420.78
EC,α5373.11
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
α-energies
γ-energies
 
μ (nm) Q (b) E* (keV)
(-)1.02(4)1586
+7.34(7)1586
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.