element
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Information about Francium-216:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 216.003188 | ± | 0.000014 | amu |
| Excess Mass (Δ): | 2.969484 | ± | 0.012886 | MeV |
| Binding Energy: | 1672.371496 | ± | 0.012889 | MeV |
| β- Decay Energy: | -0.307886 | ± | 0.015258 | 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: (1-)
- Half life: 0.70 µs ( 7×10-07 sec., λ = 990210 s-1)
- Mode of decay:
α to
(Q = 9.175 MeV)
- Mode of decay: E.C. to
(Q = 2.729 MeV)
Branch ratio: <2.0E-7 %
Meta state at 0.133 Mev
- Spin: (3-)
0.70
- Half life: 71 ns ( 7.1×10+10 sec., λ = 9.76264×10-12 s-1)
- 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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