chemistry

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Across
  1. 3. changes shape and volume
  2. 4. electrons are 'parked' here
  3. 7. what you start with in a chemical reaction
  4. 9. makes it rain!
  5. 11. more protons than electrons
  6. 13. we did this in class with dry ice
  7. 15. a product of combustion
  8. 18. a type of fuel
  9. 20. discovered the positive atomic nucleus
  10. 21. eg. water boiling
  11. 23. where protons and neutrons are found
  12. 25. negative atomic particle
  13. 26. particles vibrate in place
  14. 27. two or more particles not chemically bound
Down
  1. 1. anything on the periodic table
  2. 2. a reaction where new products are formed
  3. 4. atomic #8
  4. 5. protons minus electrons
  5. 6. protons plus electrons
  6. 8. volume doesn't change but shape can
  7. 10. two different atoms joined by chemical bond
  8. 12. a charged particle
  9. 14. this type of bond gives water cohesion
  10. 16. more electrons than protons
  11. 17. determines which element you have
  12. 19. affect mass number but not atomic number
  13. 22. same #protons, diff# neutrons
  14. 24. # 5