How many particles are in one mole, according to the mole concept?

The correct answer is based on Avogadro's number, which is fundamental in chemistry and specifically in the context of the mole concept. Avogadro's number is defined as the number of representative particles (such as atoms, molecules, ions, or other entities) in one mole of a substance, and it is equal to approximately 6.02 x 10^23. This number is crucial because it allows scientists to convert between the macroscopic scale of substances (measured in grams) and the microscopic scale of individual particles.

This conversion is essential in stoichiometry, as it enables the calculation of how many particles are involved in a given chemical reaction based on the amount of substance in moles. Understanding that one mole contains 6.02 x 10^23 particles is foundational for balancing chemical equations and performing various calculations in chemistry.

The other options do not correspond to Avogadro's number and therefore cannot represent the quantity of particles in one mole.