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.
Practise Edexcel GCSE Chemistry Group 1 with exam-style questions for Foundation and Higher tier. 51 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.