# Talk:Avogadro's constant

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## Updates to article based on new kilogram definition of May 2019

In reworking this article based on the new kg standard of 2019, I'm trying to figure out how to revise the following, which I'm deleting for now:

"Because the mole and Avogadro's number are defined in terms of the atomic mass constant (one twelfth of the mass of a ^{12}C atom), Avogadro's *constant* and *number* have by definition the same numerical value. In practice the two terms are used interchangeably."

Mark Widmer (talk) 20:41, 26 September 2021 (UTC)