Atomic structure, and Periodic table

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Across
  1. 5. 3 parts make it up
  2. 6. found on the left side of the periodic table
  3. 8. no charge in the nucleus
  4. 10. can be made into wire
  5. 12. easily breakable
  6. 13. have properties of both metal and non-metals
  7. 15. levels circle the protons and neutrons
  8. 16. how an element changes to different things
  9. 17. able to be bent or hammered into shapes
  10. 18. in the nucleus positive charge
  11. 19. not shiny
Down
  1. 1. electrons determine the reactivity of an
  2. 2. shiny object
  3. 3. allows heat through
  4. 4. negative charge very small
  5. 7. found on the right side of the periodic table
  6. 9. doesn't allow heat to pass
  7. 11. everything in the periodic table
  8. 12. has a atomic number of five
  9. 14. air we breath