What is Avogadro number?
The Avogadro constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in that sample. Its SI unit is the reciprocal mole, and it is defined exactly as NA ≡ 6.02214076×10²³ mol⁻¹. It is named after the Italian scientist Amedeo Avogadro.
