element
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Information about Radon-209:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 208.990377 | ± | 0.000032 | amu |
| Excess Mass (Δ): | -8.964106 | ± | 0.029372 | MeV |
| Binding Energy: | 1628.588181 | ± | 0.029373 | MeV |
| β- Decay Energy: | -5.159346 | ± | 0.042760 | MeV |
"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra,
Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.
Radioactive Decay Data:
- Spin: 5/2-
- Half life: 28.5 min ( 1710 sec., λ = 0.000405349 s-1)
- Mode of decay:
E.C. to
(Q = 3.930 MeV)
Branch ratio: 83.00 %
- Mode of decay:
α to
(Q = 6.155 MeV)
Branch ratio: 17.00 %
- Possible parent nuclides:
- E.C. from
- α from
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)
Magnetic Dipole Moments and Electric Quadrupole Moments
| Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
| 0 | 29 m | 5/2- | | (+)0.8388(4) | | | | [129Xe 236] | N/OP | PRL 60 2133 (88) |
| | | | | | +0.31(3) | | | CFBLS | CERN EP/87 51 (87) |
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N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.
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