element
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Information about Radon-199:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 198.998309 | ± | 0.000242 | amu # |
| Excess Mass (Δ): | -1.575000 | ± | 0.226000 | MeV # |
| Binding Energy: | 1540.486000 | ± | 0.226000 | 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: (3/2-)
- Half life: 0.62 s ( 0.62 sec., λ = 1.11798 s-1)
- Mode of decay:
α to
(Q = 7.140 MeV)
Branch ratio: 94.00 %
- Mode of decay: E.C. to
(Q = 7.200 MeV)
Branch ratio: 6.00 %
Meta state at 0.000 Mev
- Spin: 13/2+)
0.62
- Half life: 0.32 s ( 0.32 sec., λ = 2.16608 s-1)
- Mode of decay:
α to
(Q = 7.140 MeV)
Branch ratio: 97.00 %
- Mode of decay: E.C. to
(Q = 7.200 MeV)
Branch ratio: 3.00 %
- Possible parent nuclides:
- 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)
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