87-Fr-220
basic
element
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87-francium-220
- Atomic Mass: 220.0123130 +- 0.0000050 amu
- Excess Mass: 11469.463 +- 4.623 keV
- Binding Energy: 1696156.808 +- 4.632 keV
- Beta Decay Energy: B- 1209.367 +- 10.663 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: 1+
- Half life: 27.4 s
- Mode of decay: Alpha to At-216
- Branch ratio: 99.65 %
- Decay energy: 6.801 MeV
- Mode of decay: Beta to Ra-220
- Branch ratio: 0.35 %
- Decay energy: 1.209 MeV
- Possible parent nuclides:
- Alpha from Ac-224
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 | 27.4 s | 1+ | | -0.67(1) | | | | [211Fr] | CFBLS | EPL 3 175 (87) |
| | | | -0.67(1) | | | | [211Fr] | ABLS | PL 163B 66 (85) |
| | | | | | +0.47(3) st | | | "ABLS, R" | PL 163B 66 (85)/NP A468 1 (87) |
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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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