Silver is a transition element with proton number 47.

1. (a)Use the Periodic Table to state the number of occupied electron shells in an atom of silver.[1]
2. (b)Describe, with the aid of a diagram, the metallic bonding in silver.[3]
3. (c)Give two physical properties of silver that are only characteristic of transition elements but not of all metals. 1. 2.[1]
4. (d)Silver nitrate is a white crystalline soluble salt. Name a suitable combination of an acid and an insoluble base which is used to prepare silver nitrate. acid base[1]
5. (e)Aqueous silver nitrate, AgNO3(aq), is electrolysed using inert electrodes. The products of the electrolysis are silver and oxygen.
6. (e)(i)Silver ions are reduced at the cathode to make silver atoms. Construct the ionic equation for this reduction.[1]
7. (e)(ii)Hydroxide ions are oxidised at the anode to make both oxygen molecules and water molecules. Construct the ionic equation for this oxidation.[1]
8. (e)(iii)Explain why solid silver nitrate cannot be electrolysed.[1]
9. (f)Acidified aqueous silver nitrate reacts with aqueous sodium iodide. State the observations for this reaction.[1]

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