Chemistry 5070 · O Level · Transition elements

Transition elements — practice question

With proton number 47, silver is a transition element.
(a)[1]

Use the Periodic Table to state how many occupied electron shells there are in a silver atom.

(b)[3]

Describe, using a diagram, the metallic bonding in silver.

(c)[1]

Give two physical properties of silver that characterise transition elements but are not shared by every metal.

(d)[1]

Silver nitrate is a white crystalline soluble salt. Name a suitable acid and insoluble base combination used to make silver nitrate.

(e(i))[1]

Aqueous silver nitrate, $\text{AgNO}_3(aq)$, is electrolysed with inert electrodes. Silver and oxygen are the products of electrolysis. At the cathode, silver ions are reduced to form silver atoms. Construct the ionic equation for this reduction.

(e(ii))[1]

Hydroxide ions are oxidised at the anode to produce both oxygen molecules and water molecules. Construct the ionic equation for this oxidation.

(e(iii))[1]

Explain why silver nitrate in the solid state cannot be electrolysed.

(f)[1]

Acidified aqueous silver nitrate is mixed with aqueous sodium iodide. State the observations for this reaction.

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