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Atoms
Atoms - Chapter 4 Vocab
| Word | Definition |
|---|---|
| Nucleus | the very small center core of an atom |
| Isotope | Atoms of the same element, that have a different number of neutrons in their nuclei |
| Electrons | Move rapidly around the nucleus and have a negative electric charge |
| Protons | have a positive electric charge |
| Nucleus | The tiny, extremely dense, positively charged region in the center of an atom; made up of protons and neutrons |
| Neutrons | have no charge |
| Atomic Number | The number of protons in the nucleus of an atom |
| Atomic Mass | The number of neutrons plus the number of protons in the nucleus of an atom |