Across
- 2. have a positive charge
- 5. have a negative electrical charge
- 6. vertical sections of the periodic table
- 9. the total of protons and neutrons
- 10. made first semi-accurate model of atomic structure
Down
- 1. often used to scale things too small/big
- 3. have no electrical charge
- 4. atom that carries an electrical charge
- 7. horizontal sections of the periodic table
- 8. protons verses electrons