Francis William Aston

British chemist (1877-1945)

  • Fame57.7
  • Momentum0.0
  • Wikipedia1.5K
Source-basedFalling
Lived 1877–1945, aged 68United Kingdom
  • Wikipedia
    74 languages
    Cross-language footprint
  • Era
    1877–1945
    Aged 68
  • Awards
    9
    recognised works
Summary
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.

Biography

About

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
Falling
57.7
Composite of search demand, mentions, audience & graph footprint.
Score components
Historical22.7
Source confidence60.0
Completeness70.0
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Category rank
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Sources

  • Wikidata
    wikidata · wikidata.org
    High confidence
  • Wikipedia
    wikipedia · en.wikipedia.org
    High confidence
  • Pantheon 2.0
    database · pantheon.world
    High confidence