Chemistry

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Across
  1. 1. a row of chemical elements
  2. 3. the amount of space an object takes up
  3. 5. two elements formed together
  4. 7. the center of an atom
  5. 9. shiny and reflective
  6. 10. the ability to become another object when pressed
  7. 11. can hold electricity
Down
  1. 2. a substance that cannot be decomposed into another substance
  2. 4. a positive electric charge
  3. 6. a way of how it happens and reacts
  4. 8. reaction a change of physical form