Abstract
FIFTEEN years have elapsed since Niels Bohr first published a series of papers which were the beginning of a new epoch in the development of the quantum theory. Adopting the atomic model proposed by Rutherford, in which electrons circle round a massive nucleus under the action of a Coulomb force of electric attraction, Bohr gained immediate success in interpreting the spectrum of hydrogen and of ionised helium. For his purpose he was compelled to assume the existence of ‘stationary states,’ and the emission of monochromatic radiation in the transition between two such states of an atomic system.
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New Problems in Quantum Theory. Nature 121, 579 (1928). https://doi.org/10.1038/121579a0
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DOI: https://doi.org/10.1038/121579a0