element
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Information about Actinium-220:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 220.014752 | ± | 0.000055 | amu |
| Excess Mass (Δ): | 13.741495 | ± | 0.051634 | MeV |
| Binding Energy: | 1692.320070 | ± | 0.051635 | MeV |
| β- Decay Energy: | -0.913815 | ± | 0.056105 | 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: 26.4 ms ( 0.0264 sec., λ = 26.2556 s-1)
- Mode of decay:
α to
(Q = 8.350 MeV)
- Mode of decay: E.C. to
(Q = 3.480 MeV)
Branch ratio: 0.00050 %
- 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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