89-Ac-217
basic
element
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89-actinium-217
- Atomic Mass: 217.0093327 +- 0.0000140 amu
- Excess Mass: 8693.330 +- 13.026 keV
- Binding Energy: 1673154.266 +- 13.029 keV
- Beta Decay Energy: B- -3477.726 +- 31.662 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: 69 ns
- Mode of decay: Alpha to Fr-213
- Mode of decay: EC to Ra-217
- Branch ratio: <=2.00 %
- Decay energy: 2.819 MeV
Meta state at 1.528 Mev
- Spin: 21/2-
- Half life: <10 ns
- Mode of decay: IT to Ac-217
- Branch ratio: >=99.60 %
- Decay energy: 1.528 MeV
- Mode of decay: Alpha to Fr-213
- Branch ratio: <=0.48 %
- Decay energy: 11.360 MeV
Meta state at 2.013 Mev
- Spin: 29/2)+
- Half life: 740 ns
- Mode of decay: IT to Ac-217
- Branch ratio: 95.70 %
- Decay energy: 2.013 MeV
- Mode of decay: Alpha to Fr-213
- Branch ratio: 4.30 %
- Decay energy: 11.845 MeV
- Possible parent nuclides:
- Alpha from Pa-221
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 | 69 ns | 9/2- | | +3.83(5) | | | | | TDPAD | NP A436 311 (85) |
2013 | 740 ns | 29/2+ | | +5.03(70 | | | | | TDPAD | NP A436 311 (85) |
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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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