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1.2 The periodic table

1.2 The periodic table

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Question 5

This question is about Group 7 elements (the halogens).

a.

Chlorine and bromine are in Group 7 of the periodic table. State one similarity and one difference between the electronic structures of a chlorine atom and a bromine atom.

[2]
b.

A student mixes different aqueous halogens with aqueous halide solutions to observe displacement reactions.

Which of the following mixtures will undergo a displacement reaction?

  • Bromine water and sodium chloride solution
  • Iodine solution and sodium bromide solution
  • Chlorine water and sodium iodide solution
  • Iodine solution and sodium chloride solution
[1]
c.

Which of the following correctly describes the trends in properties of the halogens as Group 7 is descended?

  • Electronegativity increases and first ionisation energy increases.
  • Electronegativity decreases and first ionisation energy decreases.
  • Electronegativity increases and first ionisation energy decreases.
  • Electronegativity decreases and first ionisation energy increases.
[1]
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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