1a3 marks
The properties of elements and their compounds show similarities, differences and trends depending on the positions of the elements in the Periodic Table.
The positions of some elements are shown.
Fig. 1.1
i)
Using Fig. 1.1 identify the element that forms a soluble hydroxide and an insoluble sulfate.
[1]
ii)
Using Fig. 1.1 identify the most volatile element in a group that contains elements in all three states of matter at room temperature and pressure.
[1]
iii)
Using Fig. 1.1 identify the element that forms the largest cation.
[1]
1b5 marks
Fig. 1.2 shows the relative first ionisation energies of six successive elements in the Periodic Table.
The letters are not the symbols of the elements.
Fig. 1.2
i)
Define first ionisation energy.
[2]
ii)
Suggest why the first ionisation energy of B is much less than that of A in Fig 1.2.
[3]
1c4 marks
i)
On Fig. 1.3, sketch a graph to show the trend in the atomic radius of successive elements in Period 3.
Fig. 1.3
[1]
ii)
Explain your answer to (c)(i).
[3]
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