Chemistry

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Across
  1. 6. What is the one element that doesn't fill the first shell?
  2. 7. What is the latest particle theory?
  3. 11. What does WHIMIS stand for?
  4. 13. In the household hazards symbols what does the octagon mean?
  5. 14. What in the atom has the positive charge?
Down
  1. 1. What is the nucleus made up of?
  2. 2. How many electrons can the “K” shell hold?
  3. 3. What the measurement of mass per unit volume of a substance?
  4. 4. In the household hazards symbols what does the inverted triangle mean?
  5. 5. When particles are heated up they move?
  6. 8. What is the way the electron circles the atom called?
  7. 9. What physical property is the resistance of a solid to being scratched or dented?
  8. 10. What physical property is the measurement of how easy a liquid flows?
  9. 11. When particles are far apart their force is?
  10. 12. When particles are close together their force is?