Atoms

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Across
  1. 4. bond where electrons are shared
  2. 7. made of protons, neutrons, and electrons
  3. 8. makes identity of substance
  4. 9. many atoms bonded together
  5. 10. bond where electrons are transferred
Down
  1. 1. alter identity of substance
  2. 2. column on periodic table
  3. 3. pure substance
  4. 5. links in atoms of a substance
  5. 6. row on periodic table