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affinity number

chemistry

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work of Avogadro

  • Amedeo Avogadro
    In Amedeo Avogadro: Molecular hypothesis of combining gases

    …he termed the element’s “affinity number.” Between 1843 and his retirement in 1850, Avogadro wrote four memoirs on atomic volumes and designated affinity numbers for the elements using atomic volumes according to a method “independent of all chemical considerations”—a claim that held little appeal for chemists.

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