Question

circle a different term that doesnt belong with the other terms in the set. then explain how the rest of the words belong together.

proton	atomic mass
atomic number	electron

explanation:____

Explanation:

Proton and electron are sub - atomic particles. Atomic number is number of protons. Atomic mass is mass of an atom. Atomic mass is different as others relate to particles or count of particles.

Answer:

Atomic Mass. Proton, Atomic Number, and Electron are related to atomic particles; Atomic Mass is about atom's mass.