99-Es-249
basic
element
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99-einsteinium-249
- Atomic Mass: 249.0764050 +- 0.0000320 amu #
- Excess Mass: 71170.000 +- 30.000 keV #
- Binding Energy: 1861136.000 +- 30.000 keV #
- Beta Decay Energy: B- -2440.000 +- 145.000 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: 7/2(+)
- Half life: 102.2 min
- Mode of decay: Electron capture to Cf-249
- Branch ratio: 99.43 %
- Decay energy: 1.450 MeV
- Mode of decay: Alpha to Bk-245
- Branch ratio: 0.57 %
- Decay energy: 6.940 MeV
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)
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