Chemistry

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Across
  1. 2. positive charge
  2. 4. can conduct electricity
  3. 6. small element
  4. 7. neutral
  5. 9. formula,combination of symbols
Down
  1. 1. table, table of elements
  2. 3. electron,outer layer
  3. 5. reaction,chemical bonds
  4. 6. number,proton location
  5. 8. center of atom