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S8P1.a
Distinguish between molecules and atoms
Term | Definition |
---|---|
atom | the smallest unit of an element that maintains the properties of that element. |
proton | a subatomic particle that has a positive charge and that is found in the nucleus of an atom |
nucleus | in physical science,an atom's central region, which is made up of protons and neutrons. |
element | a substance that cannot be separated or broken down into simpler substances by chemical means. |