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1.2 The periodic table

1.2 The periodic table

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Question 13

The halogens in Group 7 of the periodic table exhibit clear trends in their reactivity and properties.

a.

Explain, in terms of atomic structure, the trend in reactivity as you descend Group 7 from chlorine to iodine.

[3]
b.

An aqueous solution of chlorine, Cl2(aq)\text{Cl}_2\text{(aq)}Cl2​(aq), is added to an aqueous solution of potassium bromide, KBr(aq)\text{KBr(aq)}KBr(aq).

  • State whether a displacement reaction occurs.
  • Write the balanced ionic equation for this reaction, including state symbols.
  • Describe the colour change observed in the mixture.
[4]
Markscheme

1.2 The periodic table Questions

  1. GCSE
  2. /Chemistry
  3. /1.2 The periodic table

22 exam-style questions on AQA GCSE Chemistry 1.2 The periodic table, covering 1.2.1 The periodic table, 1.2.2 Development of the periodic table, 1.2.3 Metals and non-metals, 1.2.4 Group 0, 1.2.5 Group 1, and 1.2.6 Group 7. Each one has a worked solution and a mark scheme showing where the marks go.

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