Avogadro's number of particles in a mole holds true for a lons b Molecules c Atoms d All of the above

Avogadro's number, approximately 6.022 x 10²³, applies to any type of particle, including ions, molecules, and atoms. So whether you’re counting single atoms in gold, molecules in water, or ions in salt, if you have one mole of those particles, you have Avogadro's number of them! It's like the ultimate party invite – all types of guests are welcome! Understanding this concept is crucial in chemistry as it helps in converting between moles and particles, which is essential for stoichiometry calculations. Whether you’re measuring out reagents for a reaction or determining concentrations, using Avogadro's number ensures you're working with the right quantities. Cheers to chemistry parties with all your particle pals!