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matter vocab
| Term | Definition |
|---|---|
| Atom | he base particle from which all elements are made; the smallest particle of an element that has the properties of that element |
| Nucleus | the central core of an atom which contains protons and neutrons |
| Electron | a tiny, negatively charged particle that moves around the outside of the nucleus of an atom |
| Proton | small, positively charged particle that is found in the nucleus of an atom |
| Neutron | small particle in the nucleus of the atom, with no electrical charge |
| Element | – a pure substance that cannot be broken down into other substances by chemical or physical means |
| Electron Cloud | where electrons are when they go around the nucleus of an atom |
| Atomic number | – the number of protons in the nucleus of an atom |