element
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Information about Carbon-21:
 |  | (no NIST x-ray data) | (no NIST attenuation data) | | Wikipedia | Neutron Cross Sections | X-Ray Transitions | X-Ray Attenuation |
Mass-Energy Data:
| Atomic Mass: | 21.049340 | ± | 0.000540 | amu # |
| Excess Mass (Δ): | 45.960000 | ± | 0.503000 | MeV # |
| Binding Energy: | 118.844000 | ± | 0.503000 | MeV # |
| β- Decay Energy: | 20.728000 | ± | 0.511000 | 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:
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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