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Atoms and Molecules — Science STD 10 — Question

Tamilnadu BoardEnglish MediumSTD 10ScienceAtoms and Molecules1 Mark
Question
Define the Avogadro number.
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Answer

The actual number of atoms in $12 g$ of carbon -12 is called the Avogadro number. It is equal to $6.023 \times 10^{23}\left( N _{ A }\right)$.

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