Specify the parent nuclei, daughter nuclei, and emitted particle in the given reaction.
Correct answer: D. Uranium, Thorium, Alpha
- A. Thorium, Uranium, Neutron
- B. Uranium, Thorium, Neutron
- C. Thorium, Uranium, Alpha
- D. Uranium, Thorium, Alpha
Explanation
The parent nucleus is "23892U" Uranium (146+92=238), Thorium "23490Th"(144+90=234) is the daughter nucleus, and the emitted particle is He+2 (Alpha particle). This can be concluded by matching the mass numbers.
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