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• 18:20, 3 July 2025 Kkmurray talk contribs created page Aston 1922/Chapter 10 (Created page with "'''CHAPTER X - THE SPECTRA OF ISOTOPES''' ==108. The Spectra of isotopes== As has already been stated the first experimental work on the spectra of isotopes was that of Russell and Rossi in 1912 who failed to distinguish any difference between the spectrum of thorium and that of a mixture of thorium and ionium containing a considerable percentage of the latter. The same negative result was obtained by Exner and Haschek. During the fractional diffusion of neon no spectro...")