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2.5 Types of substance

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Question 11
H

When hammered, a metal changes shape without breaking, but a crystal of an ionic compound shatters.

Which explanation is correct?

[1]
A

Metallic bonds are weak, so the layers slide easily, but ionic bonds are too strong to let any layer move

B

Sliding metal ions stay attracted to the delocalised electrons; in ionic crystals like charges meet and repel

C

Metal atoms are joined by covalent bonds that can bend, but the ionic bonds in a crystal are rigid and snap

D

Metal ions can move freely through the metal just like the electrons do, but ions in an ionic lattice are fixed

Markscheme

2.5 Types of substance Questions

  1. GCSE
  2. /Chemistry
  3. /2.5 Types of substance

48 exam-style questions on Edexcel GCSE Chemistry 2.5 Types of substance, covering 2.5.1 Classifying substances by structure and bonding, 2.5.2 Properties of ionic and simple molecular substances, 2.5.3 Giant covalent structures: diamond and graphite, 2.5.4 Fullerenes, graphene and simple polymers, 2.5.5 Properties of metals and non-metals, and 2.5.6 Limitations of bonding models and representations. Each one has a worked solution and a mark scheme showing where the marks go.

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