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Edexcel A Level Chemistry

Topic 4
Inorganic
Chemistry and
The Periodic Table

Topic 4 develops inorganic chemistry through Group 1, Group 2 and Group 7 trends. Students learn to explain reactivity, thermal stability, flame colours, halogen displacement reactions and the tests used to identify key inorganic ions.

Exam Papers
Paper 1
9CH0/01
Specification Points
4.1 – 4.15
15 points covered
Sub-topics
3 lessons
Revision notes available
Exam Board
Edexcel
Pearson 9CH0

Revision Notes

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Specification

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Self-assessment · 44 points

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4

  1. A.1

    understand reasons for the trend in ionisation energy down Group 2

    Revise
  2. A.2

    understand reasons for the trend in reactivity of the Group 2 elements down the group

    Revise
  3. A.3 a

    know the reactions of Mg to Ba with oxygen

    Revise
  4. A.3 b

    know the reactions of Mg to Ba with chlorine

    Revise
  5. A.3 c

    know the reactions of Mg to Ba with water

    Revise
  6. A.4 a

    know the reactions of Group 2 oxides with water

    Revise
  7. A.4 b

    know the reactions of Group 2 oxides with dilute acid

    Revise
  8. A.4 c

    know the reactions of Group 2 hydroxides with dilute acid

    Revise
  9. A.5 a

    know the trends in solubility of Group 2 hydroxides

    Revise
  10. A.5 b

    know the trends in solubility of Group 2 sulfates

    Revise
  11. A.6 a

    understand reasons for trends in thermal stability of Group 1 nitrates in terms of size and charge of cations

    Revise
  12. A.6 b

    understand reasons for trends in thermal stability of Group 2 nitrates in terms of size and charge of cations

    Revise
  13. A.6 c

    understand reasons for trends in thermal stability of Group 1 carbonates in terms of size and charge of cations

    Revise
  14. A.6 d

    understand reasons for trends in thermal stability of Group 2 carbonates in terms of size and charge of cations

    Revise
  15. A.7 a

    understand formation of flame colours by Group 1 compounds in terms of electron transitions

    Revise
  16. A.7 b

    understand formation of flame colours by Group 2 compounds in terms of electron transitions

    Revise
  17. A.7 c

    know the flame colours for Group 1 compounds

    Revise
  18. A.7 d

    know the flame colours for Group 2 compounds

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  19. A.8i

    understand experimental procedures to show: patterns in thermal decomposition of Group 1 and 2 nitrates and carbonates

    Revise
  20. A.8ii

    understand experimental procedures to show: flame colours in compounds of Group 1 and 2 elements

    Revise
  21. B.9 a

    understand reasons for trends in melting temperatures of Group 7 elements

    Revise
  22. B.9 b

    understand reasons for trends in boiling temperatures of Group 7 elements

    Revise
  23. B.9 c

    understand reasons for trends in physical state at room temperature of Group 7 elements

    Revise
  24. B.9 d

    understand reasons for trends in electronegativity of Group 7 elements

    Revise
  25. B.10

    understand reasons for the trend in reactivity of Group 7 elements down the group

    Revise
  26. B.11 a

    understand the trend in reactivity of Group 7 elements in terms of redox reactions of Cl2 with halide ions in aqueous solution followed by organic solvent

    Revise
  27. B.11 b

    understand the trend in reactivity of Group 7 elements in terms of redox reactions of Br2 with halide ions in aqueous solution followed by organic solvent

    Revise
  28. B.11 c

    understand the trend in reactivity of Group 7 elements in terms of redox reactions of I2 with halide ions in aqueous solution followed by organic solvent

    Revise
  29. B.12i

    understand, in terms of changes in oxidation number, the following reactions of the halogens: oxidation reactions with Group 1 and 2 metals

    Revise
  30. B.12ii

    understand, in terms of changes in oxidation number, the following reactions of the halogens: the disproportionation reaction of chlorine with water and the use of chlorine in water treatment

    Revise
  31. B.12iii

    understand, in terms of changes in oxidation number, the following reactions of the halogens: the disproportionation reaction of chlorine with cold, dilute aqueous sodium hydroxide to form bleach

    Revise
  32. B.12iv

    understand, in terms of changes in oxidation number, the following reactions of the halogens: the disproportionation reaction of chlorine with hot alkali

    Revise
  33. B.12v

    understand, in terms of changes in oxidation number, the following reactions of the halogens: reactions analogous to those specified above

    Revise
  34. B.13i

    understand the following reactions: solid Group 1 halides with concentrated sulfuric acid, to illustrate the trend in reducing ability of the hydrogen halides

    Revise
  35. B.13ii a

    understand precipitation reactions of Cl- with aqueous silver nitrate solution followed by aqueous ammonia

    Revise
  36. B.13ii b

    understand precipitation reactions of Br- with aqueous silver nitrate solution followed by aqueous ammonia

    Revise
  37. B.13ii c

    understand precipitation reactions of I- with aqueous silver nitrate solution followed by aqueous ammonia

    Revise
  38. B.13iii a

    understand reactions of hydrogen halides with ammonia

    Revise
  39. B.13iii b

    understand reactions of hydrogen halides with water to produce acids

    Revise
  40. B.14 a

    be able to make predictions about fluorine and its compounds using trends in halogen chemistry

    Revise
  41. B.14 b

    be able to make predictions about astatine and its compounds using trends in halogen chemistry

    Revise
  42. C.15i

    know reactions, including ionic equations where appropriate, for identifying: carbonate ions, CO32-, and hydrogencarbonate ions, HCO3–, using an aqueous acid to form carbon dioxide

    Revise
  43. C.15ii

    know reactions, including ionic equations where appropriate, for identifying: sulfate ions, SO42-, using acidified barium chloride solution

    Revise
  44. C.15iii

    know reactions, including ionic equations where appropriate, for identifying: ammonium ions, NH4+, using sodium hydroxide solution and warming to form ammonia Tests for halide ions and for the ions of Group 1 and 2 metals are also required, but are covered elsewhere in this Topic.

    Revise