Chemistry 9701 · AS & A Level · The Periodic Table: chemical periodicity

The Periodic Table: chemical periodicity — practice question

Copper is used in electrical equipment, and it has a melting point of $1085^\f$.
(a(i))[1]

Identify the type of lattice structure that copper has.

(a(ii))[1]

Draw a labelled diagram that shows the bonding present in copper.

(b(i))[1]

Define the unified atomic mass unit using a carbon-12 atom.

(b(ii))[1]

Define relative atomic mass, $A_r$, in relation to the unified atomic mass unit.

(b(iii))[1]

Calculate the relative atomic mass, $A_r$, of copper in this sample from the information in Table 1.1. Show your working.

(c)[1]

Identify the ion whose abundance is $23\%$ in the sample.

(d(i))[1]

Complete this equation for the reaction. $\ldots\ldots\ldots\text{Cu}^{2+} + \ldots\ldots\ldots\text{I}^- \rightarrow \ldots\ldots\ldots\text{CuI} + \ldots\ldots\ldots$

(d(ii))[1]

Identify the oxidising agent in this reaction. Explain your answer in terms of electron transfer.

(d(iii))[1]

State the complete electronic configuration of $\text{Cu}^{2+}$.

Worked solution & mark scheme

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