85-At-211
basic
element
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85-astatine-211
- Atomic Mass: 210.9874808 +- 0.0000041 amu
- Excess Mass: -11661.552 +- 3.811 keV
- Binding Energy: 1648210.626 +- 3.822 keV
- Beta Decay Energy: B- -2891.919 +- 6.730 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: 7.214 h
- Mode of decay: Electron capture to Po-211
- Branch ratio: 58.20 %
- Decay energy: 0.786 MeV
- Mode of decay: Alpha to Bi-207
- Branch ratio: 41.80 %
- Decay energy: 5.982 MeV
- Possible parent nuclides:
- Electron capture from Rn-211
- Alpha from Fr-215
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 |
1417 | 35.1 ns | 21/2- | | +9.56(9) | | | | | TDPAD | HFI 2 334 (76)/PR C11 243 (75) |
| | | | | | 0.53(5) | | B(E2) | R | PL 122B 27 (83) |
2641 | 50.8 ns | 29/2+ | | +15.31(13) | | | | | TDPAD | HFI 2 334 (76)/PR C11 243 (75) |
| | | | | | 1.00(5) | | | R | NP A591 104 |
| | | | | | 1.0(2) | | [211At 1417] | TDPAD | PL 122B 27 (83) |
4816 | 4.2 ms | 39/2- | | 13.46(14) | | | | | TDPAD | PS 31 333 (85) |
| | | | | | 1.9(3) | | [211At 2641] | LEMS | PR C43 2566 (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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