Fig. 2.1 displays how the atomic and ionic radii of the Period 3 elements Na to Cl change. The ionic radius of Si is not shown. Explain the pattern seen in the atomic radii of the Period 3 elements Na to Cl.
Explain why the ionic radii of Al and P differ so much.
Complete Table 2.1.
State why row B has no data for $\text{Al}_2\text{O}_3$ and $\text{SiO}_2$.
Write an equation for the reaction of $\text{Na}_2\text{O}$ with dilute hydrochloric acid.
Construct an equation for the reaction of $\text{Al}_2\text{O}_3$ with a base to form $\text{NaAlO}_2$.
Group 2 nitrates decompose on heating to give oxides. State the trend in thermal stability of the Group 2 nitrates as you move down the group.
Identify the other products of the thermal decomposition of Group 2 nitrates.