Across
- 1. smallest particle
- 8. the number of protons in the nucleus
- 9. produces negative charge
- 10. the amount of space something takes up
Down
- 2. total amount of protons and neutron
- 3. mass of an atom
- 4. produces positive charge
- 5. anything that has mass and volume
- 6. has the same mass as a proton but no charge
- 7. a bunch of the same atoms grouped together