(a)[1]
State the group number for the halogens.
(b)[1]
State the number of halogens in this group.
(c(i))[1]
Suggest which halogen has the greatest density.
(c(ii))[1]
Suggest which halogen is the most reactive.
(d)[1]
State the name used for the negative ions (anions) formed by halogens.
(e)[1]
State the number of occupied electron shells in a bromine atom.
(f)[1]
Name the noble gas with the same electronic configuration as a Br⁻ ion.
(g(i))[2]
Complete and balance the ionic equation for the reaction of Cl₂ with I⁻ ions. State symbols are not required. $\text{Cl}_2 + \dots \\text{I}^- \rightarrow \dots + \text{I}_2$
(g(ii))[2]
Explain why this reaction is classified as a redox reaction. Give your answer in terms of electron transfer.
(h)[2]
Give the colour and state of iodine at room temperature and pressure. colour state