What is Avogadro’s constant? What is its dimension? What is the physical meaning of the Avogadro constant?

What is Avogadro’s constant? What is its dimension? What is the physical meaning of the Avogadro constant? How does Avogadro’s constant differ from Avogadro’s number?

Na – Avogadro’s constant – the number of structural elements (atoms, molecules, etc.) in one mole of any substance is 6 * 10 ^ 23 mol-1.
Has a dimension: mol -1
Avogadro’s number, unlike Avogadro’s constant, has no dimension and is simply 6.02 * 10 ^ 23.

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