Potential energy curves are a useful tool for making sense of nuclear processes

Question

Potential energy curves are a useful tool for making sense of nuclear processes such as alpha-decay, fission, and fusion. The potential energy curve for each different type of nucleus is different and depends on the number of protons and neutrons. Below are plots of the potential energy as a function of the distance from the center of the nuclei for several atoms:

1) Which nuclei would likely undergo alpha-decay the soonest? Explain the physics principles and reasoning behind your answer for 1.

2) Which of these nuclei is the most stable?

3) Which atom would release the most energy if undergoing fusion with a deuterium atom?

Explanation / Answer

(1)

the sahort range nuclei will undergo alpha-decay the soonest

A and D

(b)

C and E

(3)

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