Use the periodic table to answer this question.
Table 1 shows the chemical symbols and melting points of two elements in Group 1.
| Symbol | Melting point in °C |
|---|---|
| Rb | 39 |
| Cs | 29 |
Give the chemical symbol of another element in Group 1.
75 exam-style questions on Edexcel GCSE Chemistry 7.1 Group 1, covering 7.1.1 Classifying elements by group in the periodic table and 7.1.2 Properties and reactions of the alkali metals. Each one has a worked solution and a mark scheme showing where the marks go.