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Across
  1. 4. found in the periodic table
  2. 5. only changed in appearance
  3. 7. Na
  4. 8. ar
  5. 11. be
  6. 12. ne
Down
  1. 1. changed into a new substance
  2. 2. mg
  3. 3. Ti
  4. 6. he
  5. 9. 2 or more elements chemically combined
  6. 10. li