Francis William Aston
British chemist (1877-1945) · United Kingdom · Scientists · Died at 68
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Something wrong?He proved that atoms of the same element can have different weights - a discovery that rewired chemistry and earned him the 1922 Nobel Prize.
A life in dates
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About this person
Francis William Aston was a British chemist and physicist born 1 September 1877. He built a mass spectrograph, an instrument that could measure atomic masses with unprecedented precision, and used it to discover isotopes in many non-radioactive elements - variants of the same atom with different masses. That work led him to formulate the whole number rule, a pattern governing atomic weights. The Royal Society made him a fellow, as did Trinity College, Cambridge. He died 20 November 1945.
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Scientists from the United Kingdom 1
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