A small piece of lithium is added to a beaker of cold water. A small piece of iron is added to a second beaker of cold water. The figure shows what happens.
Figure: A piece of lithium floating on water and a piece of iron resting on the bottom of a beaker of water

Use the figure. Name the property of lithium and iron that explains why one metal floats and the other sinks.
Give one other way in which the properties of iron are different from the properties of lithium.
The lithium reacts with the water. Name the two products of this reaction.
40 exam-style questions on AQA GCSE Chemistry 1.3 Properties of transition metals, covering 1.3.1 Comparison with Group 1 elements and 1.3.2 Typical properties of transition metals. Each one has a worked solution and a mark scheme showing where the marks go.