Last modified on 8 October 2013, at 07:07

Avogadro's number

EnglishEdit

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EtymologyEdit

Named after Amadeo Avogadro (1776 - 1856)

NounEdit

Avogadro's number (uncountable)

  1. (chemistry, physics) The number of atoms present in 12 grams of isotopically pure carbon-12, being 6.0221415 x 1023. By definition, the number of elementary entities (atoms or molecules) comprising one mole of a given substance.

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