(a(i))[1]
Use the data in Table 5.1 to predict rubidium’s melting point.
(a(ii))[1]
Use the data in Table 5.1 to predict the atomic volume of potassium.
(a(iii))[1]
Use the data in Table 5.1 to predict what you would observe when sodium reacts with water.
(a(iv))[2]
State the physical state of sodium at 1300 ^{\circ}C, then give a reason for your answer.
(b)[4]
Answer the questions (i)-(iii) on the extraction of iron in a blast furnace.
(c)[2]
Answer the questions (i)-(ii) on calcium carbonate in the blast furnace.
(d)[2]
Arrange the four metals in order of their reactivity. Put the least reactive metal first.