Making Molecules Question

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Across
  1. 3. The basic unit of matter
  2. 4. Two or more atoms combined
  3. 7. A subatomic particle that has negative charge
  4. 9. table of elements
  5. 11. A subatomic particle that's positive charge
Down
  1. 1. more than one elements connect by bonds
  2. 2. substance that only contains one type of atom
  3. 5. A row on the Periodic table
  4. 6. number
  5. 8. A subatomic particle that has no charge
  6. 10. A column on the Periodic table