Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Predicting the properties of francium
19 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →State and explain one reason why francium is predicted to be more reactive than potassium.
Question 2
5 marks · Hard
Answer and see the solution →Francium is a Group 1 alkali metal that has never been seen directly. Chemists use trends to predict its properties.
(a)[1 mark]State the expected physical appearance of francium when freshly cut.
(b)[2 marks]Explain why francium would be stored under oil if it could be collected in the laboratory.
(c)[2 marks]Describe and explain what you would expect to happen if francium was dropped into water.
Question 3
2 marks · Hard
Answer and see the solution →Predict whether francium would form coloured or colourless compounds in water, and explain your answer.