Irish Junior Cycle chemistry crossword

123456789101112131415161718192021222324252627282930313233343536373839
Across
  1. 4. – Gain of electrons in a reaction
  2. 5. – Atoms of the same element with different numbers of neutrons
  3. 9. – Smallest particle of an element that retains its properties
  4. 10. Table – Organises elements by increasing atomic number
  5. 11. – Scale used to measure acidity or alkalinity
  6. 12. – Substance made from two or more chemically bonded elements
  7. 13. – Reaction that absorbs heat energy
  8. 15. Number – Number of protons + neutrons
  9. 18. – A mixture of metals
  10. 19. – Solid changing directly to gas
  11. 20. – Substance with pH below 7
  12. 23. – Method for separating coloured mixtures
  13. 25. Number – Number of protons in the nucleus
  14. 30. – Regions where electrons are most likely found
  15. 31. – Reaction between acid and base
  16. 32. – Bond formed by sharing electrons
  17. 34. – Two or more atoms chemically bonded together
  18. 36. – How easily a substance undergoes a chemical change
  19. 38. – Neutral particle found in the nucleus
  20. 39. – Mass per unit volume
Down
  1. 1. – Separation method used for insoluble solids from liquids
  2. 2. – Insoluble solid formed during a reaction
  3. 3. – Gradual destruction of metals by chemical reactions
  4. 6. – Loss of electrons in a reaction
  5. 7. – Reaction that releases heat energy
  6. 8. – Using electricity to split compounds
  7. 12. – Increases reaction rate without being used up
  8. 14. – Process separating liquids by boiling points
  9. 16. – Symbols showing the elements in a compound
  10. 17. – Type of bond involving electron transfer
  11. 21. – Liquid turning to gas at the surface
  12. 22. – Reaction with oxygen producing heat and light
  13. 24. – The substance doing the dissolving
  14. 26. – A solution with a large amount of solute
  15. 27. – Substance being dissolved
  16. 28. – A solution with a small amount of solute
  17. 29. – Product formed from acid + base
  18. 33. – Subatomic particles responsible for chemical reactions
  19. 35. – Pure substance made of one type of atom
  20. 37. – Substance that reacts with acids to form salts