The Atom and Atomic Theory Crossword

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Across
  1. 1. Made the billiard ball model
  2. 5. Said that electrons travel in definite paths and made the planetary model
  3. 8. Discovered the Nucleus
  4. 9. Worked with a partner and made the electron cloud model(Hint. There are two but only one has 11 letters)
  5. 11. Negatively charged particles
  6. 12. Positively Charged Particle
  7. 13. Discovers the electron
  8. 14. Building blocks of matter
Down
  1. 2. Comes from the Greek word meaning indivisible
  2. 3. the smaller particles, that make up protons and neutrons
  3. 4. Worked with a partner and said there are no definite paths(Hint. There are two but only one has 10 letters)
  4. 6. Positively Charged region in the center
  5. 7. The first scientist who worked on the Atom
  6. 10. Particles with no charge