The table below shows the boiling points of some Group 7 elements (the halogens).
| Halogen | Boiling point in ∘C^\circ\text{C}∘C |
|---|---|
| Fluorine | -188 |
| Chlorine | -34 |
| Bromine | 59 |
| Iodine | |
| Astatine | 337 |
Use the trend shown in the table to estimate the boiling point of iodine.
106 exam-style questions on Edexcel GCSE Chemistry 7.2 Group 7, covering 7.2.1 Physical properties of the halogens, 7.2.2 Reactions of the halogens, 7.2.3 Relative reactivity and displacement reactions of the halogens, and 7.2.4 Halogen displacement as a redox reaction. Each one has a worked solution and a mark scheme showing where the marks go.