Potassium is higher in the reactivity series than calcium and reacts much more vigorously with water than calcium reacts with water.
State why potassium is higher in the reactivity series and reacts more vigorously than calcium, in terms of the number of electrons lost by each atom to form a stable ion.
Practise Edexcel GCSE Chemistry Obtaining and using metals with exam-style questions for Foundation and Higher tier. 100 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.