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Matter Week 1
Term | Definition |
---|---|
Matter | Physical substance in general |
Atom | The smallest unit of a pure substance that still has the properties of that substance |
Molecule | A group of atoms bonded together |
Protons | A subatomic particle that has a positive electric charge |
Neutrons | A subatomic particle that has the same mass as a proton but no electric charge |
Electrons | A negatively charged subatomic particle |