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Avogadro's number refers to ___. the maximum number of electrons that all of an atom's energy levels can accommodate the number of protons and neutrons that can fit in the shells of an atom's nucleus the number of particles in one mole of a substance the number of particles in exactly 1.0 g of a substance

Respuesta :

valance electrons I believe :)

The number of particles in one mole of a substance.