Science: Chemistry

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Across
  1. 4. test to find amount of hydrogen
  2. 9. 2 or more substances mixed together
  3. 10. lustrous and semi-conductive
  4. 13. bendy
  5. 14. lustrous conductive malleable and ductile
  6. 15. center of atom
  7. 18. can transport
  8. 20. fragile
  9. 21. positively charged part of an atom
Down
  1. 1. substance made of one or more element
  2. 2. no of protons
  3. 3. dull and brittle
  4. 5. negatively charged part of an atom
  5. 6. pure substance made of only one type of atom
  6. 7. bland
  7. 8. particle made of atoms bonded together
  8. 11. no of protons + neutrons
  9. 12. shiny
  10. 16. able to be turned into wires/rods
  11. 17. microscopic particles made of protons neutrons and electrons
  12. 19. neutrally charged part of an atom