element
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Information about Astatine-198:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 197.992752 | ± | 0.000459 | amu # |
| Excess Mass (Δ): | -6.751000 | ± | 0.428000 | MeV # |
| Binding Energy: | 1538.373000 | ± | 0.428000 | MeV # |
| β- Decay Energy: | -5.615000 | ± | 0.473000 | 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+)
- Half life: 4.2 s ( 4.2 sec., λ = 0.165035 s-1)
- Mode of decay:
α to
(Q = 6.893 MeV)
Branch ratio: 90.00 %
- Mode of decay: E.C. to
(Q = 8.800 MeV)
Branch ratio: 10.00 %
Meta state at 0.102 Mev
- Spin: (10-)
4.2
- Half life: 1.0 s ( 1 sec., λ = 0.693147 s-1)
- Mode of decay:
α to
(Q = 6.995 MeV)
Branch ratio: 84.00 %
- Mode of decay: E.C. to
(Q = 8.902 MeV)
Branch ratio: 16.00 %
- 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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