Chapter 5

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Across
  1. 1. Pb+2
  2. 3. atom with a difference in electrons
  3. 6. CN-1
  4. 9. number of protons plus number of neutrons (2 words)
  5. 10. parts of an atom (2 words)
  6. 13. negative particle
  7. 16. MnO4-1
  8. 17. K+1
  9. 18. positive ion
  10. 19. positive particle
  11. 20. Cr2O7-2
  12. 23. neutral particle
  13. 24. SO3-2
  14. 26. S-2
  15. 28. Cs+1
Down
  1. 2. negative ion
  2. 4. center of an atom
  3. 5. H+1
  4. 7. number of protons in an element (2 words)
  5. 8. Ca+2
  6. 11. CH3COO-1
  7. 12. a group of electrons surrounding the nucleus (2 words)
  8. 14. HCO3-1
  9. 15. Li+1
  10. 19. hydrogen-1
  11. 21. atom with a difference in neutrons
  12. 22. NH4+1
  13. 24. Na+1
  14. 25. number nucleon number (2 words)
  15. 27. Ag+1