Correct: Atoms are the smallest unit of matter, 3 subatomic particles make up atoms , Protons are always positive, Protons contribute to an atoms mass , Neutrons have no charge , Neutrons contribute to an atoms mass , Electrons are negative , Electrons are found outside the nucleus , Pronts & Neutrons are found inside the nucleus , Incorrect: Electrons have no chage , Electrons are found in the nuclues with protons , Neutrons are negative , Protons are found outside the nucleus , Electrons are big , An atom's mass comes from neutrons and electrons , It is easy to see atoms , Atoms make up only living things.,

Atomic Structure

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