element
|
Information about Astatine-211:
 |  |  | | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 210.987481 | ± | 0.000004 | amu |
| Excess Mass (Δ): | -11.661552 | ± | 0.003811 | MeV |
| Binding Energy: | 1648.210626 | ± | 0.003822 | MeV |
| β- Decay Energy: | -2.891919 | ± | 0.006730 | MeV |
"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.
Radioactive Decay Data:
- Spin: 9/2-
- Half life: 7.214 h ( 25970.4 sec., λ = 2.66899×10-05 s-1)
- Mode of decay:
E.C. to
(Q = 0.786 MeV)
Branch ratio: 58.20 %
- Mode of decay:
α to
(Q = 5.982 MeV)
Branch ratio: 41.80 %
- Possible parent nuclides:
- E.C. from
- α from
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) |
| | | | | | | | | | |
N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.
|