Chemistry is Fun

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Across
  1. 2. a reaction where a compound breaks down
  2. 3. Ca
  3. 5. small particle that consists of a proton, electron, neutron
  4. 8. positively charged subatomic particle
  5. 9. Substance that speeds up a chemical reaction
  6. 10. type of bond between metal and non-metal elements
Down
  1. 1. substance that reacts in a chemical reaction
  2. 4. two different elements bonded together
  3. 6. two of the same elements bonded together
  4. 7. Na