Matter Crossword

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Across
  1. 3. A group of atoms bonded together
  2. 4. A subatomic particle with no charge
  3. 9. A substance combination with no chemical reaction
  4. 10. smallest particle of a chemical element
  5. 11. A subatomic particle with a positive charge
  6. 12. A homogeneous mixture made of two or more substances
Down
  1. 1. A substance that cannot be broken down chemically
  2. 2. The needed amount of electrons to fill a shell of an atom
  3. 5. A subatomic particle with a negative charge
  4. 6. A chemical compound that is a good conductor
  5. 7. The name given to the horizontal row in a periodic table
  6. 8. A substance made by chemically combined elements