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2.3 Ionic bonding

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Question 6
F

A student uses the diagram below as a model of solid magnesium chloride.

image

a.

Explain one useful feature and two misleading features of this model.

[3]
b.

Magnesium has atomic number 12 and chlorine has atomic number 17. Describe the electron transfer needed to form one formula unit of magnesium chloride. Include the resulting ion charges and electron configurations.

[3]
c.

Another student says that melting magnesium chloride breaks the chloride ions into atoms, allowing electrons to flow through the liquid. Explain why this is incorrect and give the correct reason why the molten substance conducts electricity.

[2]
Markscheme

2.3 Ionic bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Ionic bonding

56 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

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