Chemistry is very young, as a science and the most plausible and coherent hypotheses about the nature of the chemical bonding have changed very rapidly. However, the waves of new discoveries have deposited a sediment of theory, which is not so thixotropic as sand though it is not as firm as rock.


Oxidation State Roman Numeral Arabic Numeral Oxidation Number Valency Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Berry, R. S., C. W. Reimann, and G. N. Spokes: J. Chem. Phys. 37, 2278 (1962).CrossRefGoogle Scholar
  2. Jørgensen, C. K.: Orbitals in Atoms and Molecules. London: Academic Press 1962.Google Scholar
  3. Palmer, W. G.: Valency, 2. Ed. Cambridge: University Press 1959.Google Scholar
  4. Palmer, W. G. A History of the Concept of Valency to 1930. Cambridge: University Press 1965.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1969

Authors and Affiliations

  • Chr. Klixbüll Jørgensen
    • 1
  1. 1.Cyanamid European Research InstituteCologny, GenevaSwitzerland

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