Nucleus[1] Binding energy (MeV) g.s. Radius[3] & Deformation[4]
19984Po115   Polonium
J(π)=(3/2-)
T1/2=5.47 m
  Experiment
[2]
Theory
[4]
Sh.corr.
[4]
Mass Excess -15.213984
(0.023444)
-14.850 -2.110
BE 1555.689 1555.325
BE/A 7.818 7.816
<R2ch>1/2 = 5.5123 ± 0.0189 fm [3]
Charge-density Distribution [6]

β2= 0.075
β3= 0.000
β4= 0.002
β6= 0.000
Excited States[1]
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Known and possible Decays[1] Q-values (keV)
roman [2], italic [4]
α - decay6074.23
β- - decay-6390.52
β+ - decay4561.44
e-capture5583.44
1p - decay-3133.50
2p - decay-5043.27
1n - decay-7812.36
2n - decay-17998.52
- - decay-13714.07
β-,n-16564.25
β-,2n-25012.32
β-,d-14991.58
β-,t-16681.21
β-386.70
β-,n,α-9674.15
EC,p3547.07
EC,2p-1452.14
EC,α10516.17
Metastable states and Resonances[1] Radiation energies (keV)[1] Thermal neutrons[1] El.-Magn. properties[5,7,8]
 
E = 310 keV
T1/2 = 4.17 m
α
24%
β+, EC
73.5%
IT
2.5%
α-energies
γ-energies
 
μ (nm) Q (b) E* (keV)
0.99(7)310
  
[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[3] I. Angeli, K.P. Marinova, Atomic Data and Nuclear Data Tables, 2013, vol. 99, pp. 69-95; unpublished update, 2016.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.