Chemistry Crossword

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Across
  1. 4. Central region of the atom.
  2. 7. This has 4 protons.
  3. 11. What you call an atom that has a negative charge.
  4. 12. A substance that can't be broken down
  5. 13. Acids have a pH level, lower and including ____.
  6. 14. This has 5 protons.
  7. 15. Positive charged particles.
  8. 18. When an atom gains an electron, it has a ____ charge.
  9. 19. This has 2 protons.
Down
  1. 1. This has 3 protons.
  2. 2. When an atom loses an electron, it has a ____ charge.
  3. 3. They have properties between those of metals and non metals.
  4. 5. Particles with no charge.
  5. 6. Negative charged particles.
  6. 8. What you call an atom that has a positive charge.
  7. 9. Bases have a pH level, greater and including ____.
  8. 10. Is chemistry a good subject
  9. 15. This is a table that has all the elements in it.
  10. 16. This has 1 proton.
  11. 17. What can the amount of protons tell you.