The electronic configurations of sodium and potassium are:
When sodium and potassium react with water, they both form positive (1+1+1+) ions by losing their outer-shell electron.
Suggest an explanation, in terms of their electronic configurations, why potassium is more reactive than sodium.
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.
