99-Es-251
basic
XS graphs
element
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99-einsteinium-251
- Atomic Mass: 251.0799836 +- 0.0000065 amu
- Excess Mass: 74504.225 +- 6.099 keV
- Binding Energy: 1873944.813 +- 6.108 keV
- Beta Decay Energy: B- -1474.438 +- 6.828 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: (3/2-)
- Half life: 33 h
- Mode of decay: Electron capture to Cf-251
- Branch ratio: 99.51 %
- Decay energy: 0.376 MeV
- Mode of decay: Alpha to Bk-247
- Branch ratio: 0.49 %
- Decay energy: 6.597 MeV
- Possible parent nuclides:
- Electron capture from Fm-251
- Alpha from Md-255
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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