Physics for IGCSE & O level - Atoms And Radioactivity (Section 2 - No. 1)

What is the difference between a nuclear reaction and a chemical reaction?
Nuclear reactions involve changes in the nucleus; chemical reactions involve changes in electrons.
Nuclear reactions involve changes in electrons; chemical reactions involve changes in the nucleus.
Both involve changes in the nucleus.
Both involve changes in electrons.

Explanation

Nuclear reactions affect the nucleus, while chemical reactions involve electrons.

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