Avogadro's number

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Etymology edit

Named after Italian physicist Amedeo Avogadro (1776–1856).

Proper noun edit

Avogadro's number

  1. (physical chemistry) The number of atoms present in 12 grams of isotopically pure carbon-12, being 6.02214076 × 1023. By definition, the number of elementary entities (atoms or molecules) comprising one mole of a given substance.
    Synonyms: Avogadro constant, Avogadro's constant

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