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Biology
| Question | Answer |
|---|---|
| Atom | smallest unit of matter |
| Element | pure substance that cannot be broken down |
| Proton | subatomic particle found in the nucleus of an atom |
| Neutron | subatomic particle with the same mass as a proton but with no charge (found in all atoms) |
| Electron | stable subatomic particle with a negative charge (found in all atoms) |
| Isotope | chemical element with the same number of protons but different amount of neutrons |
| Ion | atom or molecule with net electrical charge |
| Compound | a thing that is composed of two or more elements |
| Molecule | The smallest particle of a substance |
| Ionic Bond | A chemical bond formed by two oppositely charged ions |
| Covalent Bond | created when two atoms share one or more pairs of electrons |