Chemistry Crossword

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Across
  1. 2. Without it you pretty much die
  2. 3. New substance produced in a chemical reaction
  3. 5. Takes place when two or more substances react to create a new one
  4. 6. John Dalton's model
  5. 8. Most explosive element on the periodic table
  6. 9. When a metal and non-metal combine
  7. 10. Positive particle in the nucleus of an atom
  8. 12. The smallest part of an element
  9. 13. Releases energy
  10. 14. Change in appearance or state
  11. 19. Negative particle that orbits the nucleus in an atom
  12. 20. Slow chemical change that occurs when oxygen reacts with a metal
  13. 21. This element is found in many swimming pools
  14. 22. Absorbs energy
Down
  1. 1. _________+ Oxygen= H20
  2. 4. It is present in bananas
  3. 5. Chemical reaction that takes place in cells
  4. 7. First scientist to organize the elements into a chart
  5. 11. Element that has metallic and non-metallic properties
  6. 14. table in which the elements are organized
  7. 15. Chemical reaction that occurs when oxygen reacts with a substance
  8. 16. Substance that helps a chemical reaction proceed more quickly
  9. 17. Aurum is another name for this element
  10. 18. Most reactive non-metals
  11. 23. Neutral particle in the nucleus of an atom