Aston, Francis William
Aston, Francis William, 1877–1945, English physicist and chemist. He was affiliated with the Cavendish Laboratory, Cambridge, from 1910. In 1922 he received the Nobel Prize in Chemistry mainly for his discovery of a number of isotopes in nonradioactive elements by means of a mass spectrograph of his own invention. His writings include Isotopes (1922) and Mass-Spectra and Isotopes (1933).
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