The Theory of Spectra and Atomic Constitution: Three Essays
by Niels Bohr
Publisher: Cambridge University Press 1922
Number of pages: 152
Three essays which here appear in English all deal with the application of the quantum theory to problems of atomic structure, and refer to the different stages in the development of this theory. On the spectrum of hydrogen.--On the series spectra of the elements.--The structure of the atom and the physical and chemical properties of the elements.
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by W.C. Martin, W.L. Wiese - National Institute of Standards and Technology
This text outlines the main concepts of atomic structure, with some emphasis on terminology and notation. Atomic radiation is discussed, in particular the wavelengths, intensities, shapes of spectral lines, and continuous spectra.
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Contents - Complex spectra: Combination of several electrons; Short periods; Long periods; Rare earths; Intensity relations; Sum rules and coupling; Series limit; Hyperfine structure; Quadripole radiation; Fluorescent crystals; etc.
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Three principal methods of modern spectrographic analysis are to be examined here: Mass Spectroscopy, Nuclear Magnetic Resonance, and Infra-Red Spectroscopy. Used in concert, they allow the positive identification of many organic chemicals.
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