Atoms Matter

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Across
  1. 4. at least two different types of atoms
  2. 5. 118 different types
  3. 6. main element of steel
  4. 8. how atoms are held together
  5. 9. no chemical bonds
Down
  1. 1. cannot be broken down into another substance gas
  2. 2. h20
  3. 3. Nacl
  4. 4. mixture
  5. 7. solid, liquid, or gas forms