English Explanatory Dictionary

Avogadro's number

English dictionary entry

Meanings

name
  1. The number of elementary entities (atoms or molecules) comprising one mole of a given substance, being precisely 6.02214076 × 10²³. Formerly defined as the number of atoms present in 12 grams of isotopically pure carbon-12.

Word forms

Avogadro's number

Etymology

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

Synonyms

Avogadro constant Avogadro's constant
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