A manufacturer presses a sheet of pure metal into corrugations for a roofing panel.
Which statement explains why the sheet changes shape without breaking apart?
Regular layers of metal ions slide past one another and remain attracted to the delocalised electrons.
Positive metal ions move into gaps between layers while the delocalised electrons remain fixed.
Metallic bonds break ahead of each moving layer and new metallic bonds form behind it.
Delocalised electrons move between the layers and push the positive metal ions into new positions.
84 exam-style questions on AQA GCSE Chemistry 2.2 How bonding and structure are related to the properties of substances, covering 2.2.1a The three states of matter, 2.2.1b Limitations of the simple particle model, 2.2.2 State symbols in chemical equations, 2.2.3 Properties of ionic compounds, 2.2.4 Properties of small molecules, 2.2.5 Polymers, 2.2.6 Giant covalent structures, 2.2.7 Properties of metals and alloys, and 2.2.8 Metals as conductors. Each one has a worked solution and a mark scheme showing where the marks go.