A science teacher is planning a demonstration to illustrate the trend in reactivity of the Group 1 (alkali) metals when they react with water.
They have access to lithium, sodium, and potassium, and will use these observations to help students predict the reactions of the elements further down the group, namely rubidium and francium.
Describe the expected observations for the reactions of lithium, sodium, and potassium with water, and explain how these observations allow us to predict the chemical behaviour of rubidium and francium.
In your answer, you should also:
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.