(a) A radioactive isotope emits only a-particles. (1) Draw a diagram of the apparatus you would use to show that only a-particles areemitted. (ii) Describe the test you would carry out (iii) Explain how your results would show that no other type of radiation isemitted (b) Cold vapour in a container can be used to observe the behaviour of a-particles. What is the special name given to this container and how does it work? (c) The diagram shows a stream of a-particles about to enter the space between the poles of a very strong magnet. N a-particles Describe the path of the a-particles in the space between the magnetic poles. Explain your answer.

(a) A radioactive isotope emits only a-particles. (1) Draw a diagram of the apparatus you would use to show that only a-particles areemitted. (ii) Describe the test you would carry out (iii) Explain how your results would show that no other type of radiation isemitted (b) Cold vapour in a container can be used to observe the behaviour of a-particles. What is the special name given to this container and how does it work? (c) The diagram shows a stream of a-particles about to enter the space between the poles of a very strong magnet. N a-particles Describe the path of the a-particles in the space between the magnetic poles. Explain your answer.