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chapter 1 review
has to do with atoms and matter
| Question | Answer |
|---|---|
| a positively charged particle in the nucleus of an atom | Proton |
| The region surrounding an atom's nucleus where one or more electrons are found | Electron cloud |
| negatively charged particle that occupies the space in an atom outside the nucleus | electron |
| one or more atoms of an element having the same number of protons but a different number of neutrons | isotope |
| region at the center of an atom that contains most of the mass | nucleus |
| an atom |