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For a nuclear fusion process, the suitable nuclei are:

1. any nuclei
2. heavy nuclei
3. light nuclei
4. nuclei lying in the middle of the periodic table

Correct answer: light nuclei

Solution

Nuclear fusion involves combining light nuclei, such as hydrogen isotopes, to form a heavier nucleus, releasing energy due to the mass defect. Heavy nuclei are not suitable for fusion as they require extremely high energy to overcome their strong repulsive forces.

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