Chemistry

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Across
  1. 5. anything that takes up space
  2. 8. mixture that has uniform appearance
  3. 9. neutral part of an atom
  4. 10. negative charge of an atom
Down
  1. 1. two or more substances physically combined
  2. 2. does not have a uniform appearance
  3. 3. positive charge of an atom
  4. 4. pure substances made of one type of atom
  5. 6. basic building blocks of matter
  6. 7. two or more elements chemically combined