Chemistry: key terms

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Across
  1. 3. the columns in the periodic table
  2. 6. one type of atom
  3. 7. two or more substances not chemically bonded that can be separated
  4. 8. the subatomic particle with no charge
  5. 9. the rows in the periodic table
  6. 10. where electrons are found around an atom
Down
  1. 1. a charged particle
  2. 2. two or more different atoms chemically bonded
  3. 4. positively charged subatomic particle
  4. 5. a small piece of matter
  5. 6. the smallest subatomic particle
  6. 7. two or more atoms chemically bonded