Chemistry

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Across
  1. 3. Surrounds the Nucleus
  2. 7. Makes up all matter in universe
  3. 9. Has a mass of 0 amu
Down
  1. 1. Helps identify the atom
  2. 2. ability to be drawn into thin wires
  3. 4. ability to reflect light
  4. 5. study of how atoms interact with one another to form new substances
  5. 6. Neutral Charge
  6. 8. The smallest unit of matter
  7. 10. Center of the atom