Avogadro's number
noun Chemistry.
the constant, 6.022 × 1023, representing the number of atoms, molecules, or ions in one mole of a substance. Symbol: NCompare gram-atom, gram molecule.
Compare Loschmidt's number.
Origin of Avogadro's number
First recorded in 1925–30; see origin at Avogadro's law
Also called Avogadro constant.
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Avogadro's number
n.
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Avogadro's number
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