CH163 Week 4 Recitation

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Across
  1. 4. F-1
  2. 9. positively charged ion
  3. 10. negatively charged subatomic particle
  4. 11. positively charged subatomic particle
  5. 14. I-1
  6. 17. CN-1
  7. 18. the name for group 2A elements
  8. 19. no charge and in the nucleus
  9. 21. elements to the left of the staircase are _____
  10. 23. S-2
  11. 25. tells you the number of protons in an element
  12. 26. Br-1
  13. 27. P-3
  14. 28. columns on the periodic table
Down
  1. 1. OH-1
  2. 2. elements to the right of the staircase are _____
  3. 3. rows on the periodic table
  4. 5. the same number of protons and electrons but different number of neutrons
  5. 6. negatively charged ion
  6. 7. the name for group 8A elements
  7. 8. weighted average of all naturally occuring isotopes of an element
  8. 9. Cl-1
  9. 12. the sum of protons and neutrons
  10. 13. the name for group 1A elements
  11. 15. elements along the staircase are _____
  12. 16. the name for group 7A elements
  13. 20. C-4
  14. 22. N-3
  15. 24. protons and electrons are _____ in a neutral atom
  16. 29. O-2