element
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Information about Protactinium-217:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 217.018289 | ± | 0.000083 | amu |
| Excess Mass (Δ): | 17.035691 | ± | 0.077286 | MeV |
| Binding Energy: | 1663.247198 | ± | 0.077286 | 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: 4.9 ms ( 0.0049 sec., λ = 141.459 s-1)
- Mode of decay:
α to
(Q = 8.490 MeV)
Meta state at 1.854 Mev
4.9 - Half life: 1.6 ms ( 0.0016 sec., λ = 433.217 s-1)
- Mode of decay:
α to
(Q = 0 10.344 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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