The isotope effect: Prediction, discussion, and discovery

  title={The isotope effect: Prediction, discussion, and discovery},
  author={H. Kragh},
  journal={arXiv: History and Philosophy of Physics},
  • H. Kragh
  • Published 2011
  • Physics
  • arXiv: History and Philosophy of Physics
  • The precise position of a spectral line emitted by an atomic system depends on the mass of the atomic nucleus and is therefore different for isotopes belonging to the same element. The possible presence of an isotope effect followed from Bohr's atomic theory of 1913, but it took several years before it was confirmed experimentally. Its early history involves the childhood not only of the quantum atom, but also of the concept of isotopy. Bohr's prediction of the isotope effect was apparently at… CONTINUE READING
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