Chemistry Crossword

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Across
  1. 4. Model shows all electrons
  2. 5. Your favorite chemistry teacher
  3. 7. A clown in jail
  4. 9. A test in the laboratory
  5. 10. K
  6. 12. Has no net electric charge
  7. 15. Particles moving around the nucleus
  8. 18. Electrons in the outer shell
  9. 19. Positive particles in the nucleus
  10. 21. S
  11. 22. Positively charged particle
  12. 23. ____ table
  13. 24. Another name to call ionic compounds
  14. 25. Negatively charged particle
Down
  1. 1. Electro____
  2. 2. Density is ____ over volume
  3. 3. Eye protection
  4. 6. Leave turning brown and yellow. This is a ___ change.
  5. 8. Combination of two or more atoms
  6. 11. Used to weigh substances
  7. 13. What you should do with a dead chemist.
  8. 14. Taste sour
  9. 16. Ladies' favorite chemical element
  10. 17. Model shows valence electrons
  11. 20. Na
  12. 22. Cu
  13. 23. salt dissolves in water. This is a ___ change.