87-Fr-205
basic
element
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87-francium-205
- Atomic Mass: 204.9986640 +- 0.0002550 amu
- Excess Mass: -1244.512 +- 237.486 keV
- Binding Energy: 1587800.941 +- 237.486 keV
- Beta Decay Energy: B- -7007.000 +- 314.000 keV #
"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.
- Spin: (9/2-)
- Half life: 3.85 s
- Mode of decay: Alpha to At-201
- Mode of decay: EC to Rn-205
- Branch ratio: <1.00 %
- Decay energy: 6.520 MeV
- Possible parent nuclides:
- Alpha from Ac-209
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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