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Atoms
Ch 3 Les 4 Voc
Term | Definition |
---|---|
model | a picture, an idea, or an object that is built to explain how something else looks or works |
electron | a tiny particle of an atom that moves around the nucleus and has a negative charge |
nucleus | the central part of an atom |
proton | a tiny particle in the nucleus of an atom that has a positive charge |
neutron | a tiny particle in the nucleus of an atom that is similar to a proton in size and has no charge |