Group 7 - the halogens - Edexcel

1

Where in the periodic table are the halogens found?

2

What does bromine look like?

3

Iodine is a halogen. What is the formula of iodine?

4

What happens to the melting points and boiling points as you go down group 7?

5

The densities (in g/dm3) of three halogens is given below:

Chlorine = 3.2

Bromine = 3,120

Iodineccc = 4,930

Which of the following could be the density of fluorine, the halogen above chlorine in group 7?

6

What is produced when lithium reacts with bromine?

7

What kind of solution is formed by the product of the reaction between hydrogen and bromine?

8

When chlorine is passed over damp litmus paper, what happens?

9

Which halogen will displace bromine from a solution of potassium bromide?

10

The ionic equation below shows how bromine can displace iodine from solutions of sodium iodide:

2Cl2 + 2Na+Br- → Br2 + 2Na+Cl-

What is oxidised in this reaction?