The table below shows some physical properties of the first four halogens in Group 7.
| Halogen | Colour | Melting point (∘C^\circ\text{C}∘C) |
|---|---|---|
| Fluorine | Pale yellow | -220 |
| Chlorine | Pale green | -101 |
| Bromine | Red-brown | -7 |
| Iodine | Dark grey | 114 |
Astatine is located directly below iodine in Group 7.
Predict the colour of astatine and estimate its melting point.
Practise Edexcel GCSE Chemistry Group 7 with exam-style questions for Foundation and Higher tier. 87 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.