Midterm Crossword

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Across
  1. 2. Particles that have geometric pattern and definite volume
  2. 4. All elements on the right side of the periodic table
  3. 8. A positive ion
  4. 9. Positively charged particle
  5. 11. Thompson discovered it's charge
  6. 13. A negative ion
  7. 14. Pure substance of two or more elements
Down
  1. 1. Rutherford's experiment(2 words)
  2. 3. All elements from the left through the middle of the periodic table
  3. 5. Electron emits this from excited state
  4. 6. Mixture with constant composition
  5. 7. Mixture with varying composition
  6. 10. Electron's location in the quantum model
  7. 12. Particles that have little attraction to each other and definite volume