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