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Atom Vocabulary
Vocab for the atom
| Question | Answer |
|---|---|
| neutrons | neutral charge; inside the nucleus |
| Niels Bohr | created the electron cloud model of an atom |
| nucleus | middle of the atom |
| matter | anything that takes up space and has mass |
| gas | particles are far apart |
| 3 states of matter | solid, liquid, and gas |
| atom | smallest particle of an element |
| proton | positive charge; inside the nucleus |
| solid | particles are close together; have a fixed shape |
| liquid | particles are farther apart: move easily and quickly |
| electron | negative charge; outside the nucleus on the orbit |
| What makes up matter? | tiny particles |