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Nature 449, 411-413 (27 September 2007) | doi:10.1038/449411a; Published online 26 September 2007
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- South Dakota State University
- Brookings, SD
Chemical Reaction Engineering & Reactor Design
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Nuclear physics: A non-disappearing magic trick
Ragnar Bengtsson1 & Peter Möller2
Abstract
Well-established models of nuclei describe properties such as shells and magic numbers. But how do these predictions stand up to scrutiny for exotic, unstable nuclei? Pretty well, according to the latest study.
Of the very many atomic isotopes that could possibly exist in nature, only a few hundred are actually stable — just a handful, on average, for each chemical element. No stable isotope exists at all beyond bismuth (proton number Z = 83), although some isotopes of thorium (Z = 90) and uranium (Z = 92), with half-lives in the billions of years, come close.
- Ragnar Bengtsson is in the Division of Mathematical Physics, Lund Institute of Technology, Lund University, Box 118, SE-22100 Lund, Sweden.
- Peter Möller is in the Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545-0001, USA.
Email: moller@lanl.gov
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