element
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Information about Astatine-208:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 207.986583 | ± | 0.000028 | amu |
| Excess Mass (Δ): | -12.498312 | ± | 0.025831 | MeV |
| Binding Energy: | 1624.833416 | ± | 0.025833 | MeV |
| β- Decay Energy: | -2.839872 | ± | 0.029036 | 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: 6+
- Half life: 1.63 h ( 5868 sec., λ = 0.000118123 s-1)
- Mode of decay:
E.C. to
(Q = 4.973 MeV)
Branch ratio: 99.45 %
- Mode of decay:
α to
(Q = 5.751 MeV)
Branch ratio: 0.55 %
- 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 |
| 1090 | 48 ns | 10- | | +2.69(3) | | | | | TDPAD | ZP A322 463 (85) |
| 2276 | 1.5ms | 16- | | | | 1.7(3) | | [g calc] | LEMS | PR C43 2566 (91) |
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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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