Question 1
The diagram shows the decay series for uranium-238 until it reaches a stable nuclide. What type of decay occurs in the step from protactinium-234 to uranium-234?
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Physics · Unit 1 · Ionising radiation and nuclear reactions · Nuclear model and stability
Explain how a radionuclide will, through a series of spontaneous decays, become a stable nuclide.
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Question 2
The decay chain diagram shows the path from uranium-238 to lead-206. What key feature of this series explains why multiple decays are necessary before a stable nuclide is reached?
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Question 3
What key characteristic describes how an unstable radionuclide achieves nuclear stability?
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