. An atom can be called a particle, but a molecule is never called a particle.

it's because a particle is a very small matter piece, and an atom is a very small piece of matter, but a particle is some atoms joined together to make a substance, but a particle, which is made from atoms, can't be called atoms.

Explanation:

212121212121212122121212121121212122121212121212121212121n i think

it should be all of them because it asks if you included all of those in your answer

explanation: