The diagrams show the shapes of several atomic orbitals. Name the orbital type, $s$, $p$, or $d$.
Cadmium gives the two ions, $\text{Cd}^{2+}$ and $\text{Cd}^+$. The electronic configuration of cadmium in these ions is shown as $[\text{Kr}]\,4d^{10}5s^1$ and $[\text{Kr}]\,4d^{10}$. Use this information to explain why cadmium is not a transition element.
Methylamine, $\text{CH}_3\text{NH}_2$, is a monodentate ligand. State what is meant by monodentate in this context.
When aqueous methylamine is present, $[\text{Cd}(\text{H}_2\text{O})_6]^{2+}$ reacts to produce a mixture of two octahedral isomers. Equilibrium 1: $[\text{Cd}(\text{H}_2\text{O})_6]^{2+} + 4\text{CH}_3\text{NH}_2 \rightleftharpoons [\text{Cd}(\text{CH}_3\text{NH}_2)_4(\text{H}_2\text{O})_2]^{2+} + 4\text{H}_2\text{O}$, $\Delta H^\circ = -57\,\text{kJ mol}^{-1}$ Finish the 3D diagrams to show the isomers of $[\text{Cd}(\text{CH}_3\text{NH}_2)_4(\text{H}_2\text{O})_2]^{2+}$. Use $L$ to represent $\text{CH}_3\text{NH}_2$ in your diagrams.
State what is meant by the term stability constant.
Complete the table by putting one tick (✓) in each row to show how increasing temperature is expected to change $K_{\text{stab}}$ and the equilibrium concentration of the cadmium complex, $[[\text{Cd}(\text{CH}_3\text{NH}_2)_4(\text{H}_2\text{O})_2]^{2+}]$, for equilibrium 1. Explain your answer.
A solution containing equal amounts of $\text{CH}_3\text{NH}_2$ and EDTA is added to $[\text{Cd(H}_2\text{O)}_6]^{2+}$. Predict which complex is formed in the larger amount. Explain your answer.
Methylamine is a Brønsted-Lowry base. Write an equation to show how methylamine dissolves in water to produce an alkaline solution.
Write an equation for the reaction of ethanoyl chloride with methylamine.
Methylamine also reacts with propanone to form compound $P$ as shown. Deduce the reaction type shown here.