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S8P1.a
Distinguish between atoms and molecules
Term | Definition |
---|---|
Atom | The smallest unit an element that maintains the properties of that element |
Element | Substance that cannot be separated or broken down into simpler substances by chemical means |
Nucleus | In physical science, an atom's central region which is made up of protons and neutrons |
Neutron | A subatomic particle that has no charge and that is found in the nucleus of an atom |
Proton | A subatomic particle that has a positive charge and that is found in the nucleus of an atom |
Electron | A subatomic particles that has a negative charge |
Atomic number |