C1

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Across
  1. 7. Element with electron configuration - 2.8.8.1 (9)
  2. 10. Element with electron configuration - 2.1 (7)
  3. 13. A material that conducts heat and electricity (9)
  4. 14. A particle with charge 0 and mass 1 (7)
  5. 16. A material that does not conduct heat or electricity (9)
  6. 21. Element with electron configuration - 2.7 (8)
  7. 22. The smallest particle of an element (4)
  8. 23. Another name for the Group 1 metals (6)
  9. 24. Element with electron configuration - 2.2 (9)
  10. 27. A substance made from at least two atoms joined together (8)
  11. 30. A substance made from at least two different atoms joined together (8)
  12. 31. Element with electron configuration - 2.8.7 (8)
  13. 33. Element with electron configuration - 2.8 (4)
  14. 34. A technique to separate water and salt (15)
  15. 36. Element with electron configuration - 2.6 (6)
  16. 37. Element with electron configuration - 2.3 (5)
  17. 38. Element with electron configuration - 2.5 (8)
  18. 39. A column on the periodic table (5)
Down
  1. 1. A row on the periodic table (6)
  2. 2. A substance where all atoms are the same (7)
  3. 3. A particle with charge +1 and mass 1 (6)
  4. 4. Element with electron configuration - 2 (6)
  5. 5. An ion with charge -1 and electron configuration - 2.8.8 (8)
  6. 6. A material that can be hammered flat (9)
  7. 8. An ion with charge -1 and electron configuration - 2.8 (8)
  8. 9. A material that makes a clanging sound (8)
  9. 11. A material that can be drawn into wires (7)
  10. 12. Element with electron configuration - 2.8.8.2 (7)
  11. 13. A technique to separate coloured dyes (14)
  12. 15. A technique to separate water and sand (10)
  13. 17. A technique to purify water (12)
  14. 18. Another name for the Group 7 non-metals (7)
  15. 19. Element with electron configuration - 2.4 (6)
  16. 20. This holds either 2 or 8 electrons (5)
  17. 25. A particle with charge -1 and mass 0 (8)
  18. 26. The scientist who invented the periodic table (9)
  19. 28. A particle with a charge (3)
  20. 29. A substance made from a mix of other substances (7)
  21. 32. Element with electron configuration - 1 (8)
  22. 35. Element with electron configuration - 2.8.1 (6)