87-Fr-212
basic
element
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87-francium-212
- Atomic Mass: 211.9961950 +- 0.0000277 amu
- Excess Mass: -3544.346 +- 25.771 keV
- Binding Energy: 1646600.035 +- 25.773 keV
- Beta Decay Energy: B- -3342.670 +- 29.038 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: 5+
- Half life: 20.0 min
- Mode of decay: Electron capture to Rn-212
- Branch ratio: 57.00 %
- Decay energy: 5.117 MeV
- Mode of decay: Alpha to At-208
- Branch ratio: 43.00 %
- Decay energy: 6.529 MeV
- Possible parent nuclides:
- Alpha from Ac-216
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)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
0 | 19.3 m | 5+ | | +4.62(9) | | | | [211Fr] | CFBLS | EPL 3 175 (87) |
| | | | +4.62(9) | | | | [211Fr] | ABLS | PL 163B 66 (85) |
| | | | | | -0.10(1) st | | | ABLS | PL 163B 66 (85) |
1551 | 27 ms | 11+ | | 9.89(4) | | | | | SOPAD | HFI 3 297 (77) |
2492 | 604 ns | (15-) | | +15.65(12) | | | | | TDPAD | PL B217 38 (89) |
| | | | 15.60(15) | | | | | TDPAD | NP A448 137 (86) |
| | | | | | 0.84(13) | | [213Fr 2538] | TDPAD | NP A516 145 (90) |
| | | | | | -0.80(12) | | [213Fr 2538] | LEMS | PR C43 514 (91) |
4834 | 4.2 ns | 22+ | | 22(4) | | | | | TDPAD | NP A448 137 (86) |
5854 | 312 ns | (27-) | | 21.9(3) | | | | | TDPAD | NP A448 137 (86) |
| | | | | | 1.7(3) | | [213Fr 2538] | TDPAD | NP A516 145 (90) |
| | | | | | -1.5(3) | | [213Fr 2538] | LEMS | PR C43 514 (91) |
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N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.
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