Across
- 2. the amount of protons in an atom, has to be 1 or higher
- 3. the thing that contains protons, neutrons, and electrons
- 6. uncharged parts of the nucleus
- 8. non-reactive elements, found on the far right side of the periodic table
- 9. number of protons+ number of neutrons equals
Down
- 1. orbit the nucleus, negatively charged
- 4. any atom that carries an electrical charge
- 5. positively charged parts of the nucleus
- 7. extremely reactive elements, found on the far left of the periodic table