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The Spectra of Silicon at Successive Stages of Ionisation1

Nature volume 113, page 802 (31 May 1924) | Download Citation

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Abstract

THE present lecture may be regarded as a continuation of the Bakerian Lecture of 1914, in which it was established that series in spark spectra, though otherwise similar to arc series, are characterised by a fourfold value of the series constant N. This result was in complete agreement with Bohr's theory, according to which arc series originate in neutral atoms, and spark series in ionised atoms. The theory further suggested that atoms which had lost two electrons, or had become doubly ionised, would give series having 9N for the constant; atoms which had lost three electrons would yield series with 16N for constant, and so on.

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https://doi.org/10.1038/113802a0

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