The table shows the boiling points of four Group 7 elements.
| Element | Boiling point (∘C^\circ\mathrm{C}∘C) |
|---|---|
| Fluorine | -188 |
| Chlorine | -34 |
| Bromine | 59 |
| Iodine | 184 |
Astatine is below iodine in Group 7.
What is the most likely boiling point of astatine?
120 ∘C120\,^\circ\mathrm{C}120∘C
320 ∘C320\,^\circ\mathrm{C}320∘C
−60 ∘C-60\,^\circ\mathrm{C}−60∘C
184 ∘C184\,^\circ\mathrm{C}184∘C
113 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.