89-Ac-221
basic
element
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89-actinium-221
- Atomic Mass: 221.0155757 +- 0.0000542 amu
- Excess Mass: 14508.712 +- 50.495 keV
- Binding Energy: 1699624.176 +- 50.496 keV
- Beta Decay Energy: B- -2417.928 +- 51.397 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.
- Half life: 52 ms
- Mode of decay: Alpha to Fr-217
- Possible parent nuclides:
- Alpha from Pa-225
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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