Atoms and Elements

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