Chemistry Review Crossword

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Across
  1. 3. Group of atoms
  2. 5. Center of the atom
  3. 9. Contains more than one type of atom or molecule
  4. 10. Neutral particle
  5. 11. Does it dissolve?
  6. 13. The amount of matter in an object
  7. 14. Describes matter
  8. 15. Used to measure
Down
  1. 1. Smallest unit of matter
  2. 2. Creates a new substance
  3. 4. Positive particle
  4. 6. Negative particle
  5. 7. Mass divided by volume
  6. 8. Measures mass
  7. 9. Has mass and takes up space
  8. 12. Connection between atoms