(a(i))[1]
In which order are the elements placed in the Periodic Table?
(a(ii))[1]
How does the character of the elements alter from left to right across a period?
(a(iii))[2]
Describe two trends in the properties of the elements as you go down Group I.
(b(i))[2]
What colour change is observed in the solution? From …… to ……
(b(ii))[1]
Suggest why astatine fails to react with aqueous potassium iodide.
(c(i))[2]
Complete the chemical equation for this reaction. $\text{Cl}_2 + \ldots \rightarrow \ldots\text{HCl}$
(c(ii))[2]
Draw a diagram showing the electronic structure of one molecule of hydrogen chloride. Include only the outer-shell electrons.
(c(iii))[2]
Complete the word equation for this reaction. hydrochloric acid + lithium hydroxide $\rightarrow$ [BLANK] + [BLANK]