(a(i))[1]
Predict astatine's melting point.
(a(ii))[1]
Predict fluorine's atomic volume.
(a(iii))[2]
State the physical state of fluorine at $-240^{\circ}$C, and give a reason for your answer.
(b(i))[2]
Complete the word equation for this reaction: chlorine + sodium iodide $\rightarrow$ [BLANK] + [BLANK].
(b(ii))[1]
Explain why aqueous bromine does not react with aqueous sodium chloride.
(c)[2]
Complete the symbol equation: $2\text{F}_2$ + $\ldots$H$_2$O $\rightarrow$ 4HF + $\ldots$.
(d)[2]
Name an anhydrous compound used to test for water, then state the colour of the compound after water is added.