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Some Methods of Estimating the Successive Ionisation Potentials of any Element

Published online by Cambridge University Press:  24 October 2008

D. R. Hartree
D. R. Hartree
Affiliation:
St John's College
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Extract

On certain assumptions as to the quantum numbers of the normal orbits of the successive electrons captured by an atom, the successive ionisation potentials can be estimated by making use of the relations between terms of the same quantum number for different atoms of the same electronic structure. Formulae for several of the successive ionisation potentials are given, the form of the formulae being suggested by theoretical reasoning and numerical values of the constants determined from known spectra; the successive ionisation potentials of O, Fe and Ag, calculated from these formulae, are tabulated. It is pointed out how far different these ionisation potentials are from the X-ray excitation potential of the same orbit of a neutral atom.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 22 , Issue 3 , 20 September 1924 , pp. 464 - 474
Copyright
Copyright © Cambridge Philosophical Society 1924

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References

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(13) Deduced from the lines given in Paschen-Götze, Seriengesetze der Linienspectren, assuming v = 27700 for the 44 term, which is not likely to be far different from the corresponding term of He II.Google Scholar