element
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Information about Actinium-211:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 211.007648 | ± | 0.000135 | amu |
| Excess Mass (Δ): | 7.124247 | ± | 0.125858 | MeV |
| Binding Energy: | 1626.295412 | ± | 0.125858 | MeV |
| β- Decay Energy: | -6.716000 | ± | 0.437000 | 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:
- Half life: 0.25 s ( 0.25 sec., λ = 2.77259 s-1)
- Mode of decay:
α to
(Q = 7.620 MeV)
Branch ratio: ~100.00 %
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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