Francis William Aston
British chemist (1877-1945)
- Fame57.7
- Momentum0.0
- United Kingdom rank#97
Source-basedFalling
- Fame57.7
- Momentum0.0
- United Kingdom rank#97
- Scientists rank#179
- Wikipedia1.5K
Lived 1877–1945, aged 68United Kingdom
United KingdomSummary
Updated 2026-06-08
He proved that atoms of the same element can have different weights — a discovery that rewired chemistry and earned him the 1922 Nobel Prize.
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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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Fame
Falling57.7
Composite of search demand, mentions, audience & graph footprint.
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Historical22.7
Source confidence60.0
Completeness70.0
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- WikidataHigh confidencewikidata · wikidata.org
- WikipediaHigh confidencewikipedia · en.wikipedia.org
- Pantheon 2.0High confidencedatabase · pantheon.world
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