Define the term : Avogadro's number - Vidyadip

Question

Define the term : Avogadro's number

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Answer

Avogadro's number : Avogadro's number is defined as the number of atoms present in $12g$ of $C^{12}$ isotope i.e. $6.023 \times 10^{23}$ atoms.

It is number of elementary units i .e. atoms, ions or molecules present in one $mole$ of a substance.
It is denoted by $N_{A.}$

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