element
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Information about Polonium-203:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 202.981413 | ± | 0.000071 | amu |
| Excess Mass (Δ): | -17.313804 | ± | 0.065721 | MeV |
| Binding Energy: | 1590.074648 | ± | 0.065722 | MeV |
| β- Decay Energy: | -5.062066 | ± | 0.124897 | 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: 36.7 min ( 2202 sec., λ = 0.000314781 s-1)
- Mode of decay:
E.C. to
(Q = 4.230 MeV)
Branch ratio: 99.89 %
- Mode of decay:
α to
(Q = 5.496 MeV)
Branch ratio: 0.11 %
Meta state at 0.641 Mev
- Spin: 13/2+
36.7
- Half life: 45 s ( 45 sec., λ = 0.0154033 s-1)
- Mode of decay: γ (IT) (Q = 0.641 MeV)
Branch ratio: ~100.00 %
- Mode of decay:
α to
(Q = 6.137 MeV)
Branch ratio: ~0.04 %
- 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 | 36.7 m | 5/2- | | 0.74(6) | | | | | NO/S | JP G17 1673 (91) |
| | | | (+)0.74(3) | | | | | NO/S | Cf87Melb. 174 (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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