DR AF T 9 Isotope Distributions and Isotope Patterns

  • Published 2011


“Two very significant discoveries are due to mass spectroscopic studies. First, J.J. Thomson discovered that neon consisted of a mixture of two different isotopes (masses 20 and 22) rather than only a single isotope. This observation of the existence of stable isotopes is perhaps the greatest achievement that can be claimed by mass spectroscopy. [. . . ] The second significant discovery due to mass spectrographic studies was made by F.W. Aston. He observed that the masses of all isotopes are not simple multiples of a fundamental unit, but rather they are characterized by a mass defect; i.e., isotopes do not have integral masses.” (Robert W. Kiser, The Introduction to Mass Spectrometry)

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@inproceedings{2011DRAT, title={DR AF T 9 Isotope Distributions and Isotope Patterns}, author={}, year={2011} }