Chemistry Crossword

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Across
  1. 3. can be stretched
  2. 6. positively charged
  3. 7. charged particle caused by a loss or gain in electrons
  4. 9. no charge
  5. 11. good conductors
  6. 12. bad conductors
  7. 13. energy is released
Down
  1. 1. negatively charged particle
  2. 2. negatively charged
  3. 4. positively charged particle
  4. 5. all elements are on it
  5. 8. smallest unit of matter
  6. 10. energy is absorbed
  7. 11. protons plus neutrons