5a. A nucleus of radium 91Ra226 undergoes alpha particle decay to form a nucleus of radon (Rn).

A nucleus of radium 91Ra226 undergoes alpha particle decay to form a nucleus of radon (Rn).
(a) Identify the proton number and nucleon number of the nucleus of Rn.
(b) Immediately after the decay of a stationary radium nucleus, the alpha particle and the radon nucleus) move off in opposite directions and at different speeds.
(i) Outline the reasons for these observations.
(ii) Show that the ratio(initial kinetic energy of alpha particle/ initial kinetic energy of radon atom) is about 56.

The solution for the above question stems from the the usage of concepts from the chapter NUCLEAR PHYSICS, - radioactivity, conservation of momentum, kinetic energy to answer this MCQ. This question is taken from IBDP Paper-2, TZ1 PHYSICS HL 2010 MAY. EXAM. To see all the MCQs for this exam and also for other exams or past papers, visit: https://rathankar.com Links

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