State, with reference to subatomic particles, how $^{69}\text{Ga}$ and $^{71}\text{Ga}$ differ.
State what extra information is required to calculate the relative atomic mass of gallium.
At $500\,^{\circ}\text{C}$, gallium trichloride is a gas. Suggest the type of attraction present at $500\,^{\circ}\text{C}$: • within a gallium trichloride molecule • between gallium trichloride molecules.
When gallium trichloride is cooled, a solid, $\text{Ga}_2\text{Cl}_6$, is produced. Suggest the name of the attraction formed between two gallium trichloride molecules to make $\text{Ga}_2\text{Cl}_6$.
Suggest an equation that describes the reaction when gallium metal is exposed to air.
Gallium oxide reacts separately with hot aqueous hydrochloric acid and hot aqueous sodium hydroxide to produce $\text{GaCl}_3$ and $\text{NaGa(OH)}_4$ respectively. Give the name of the type of behaviour shown by gallium oxide in these reactions.