Which of the following is artificially produced as it does not occur in nature ?
Correct answer: D. Both B. and C.
- A. Uranium-235
- B. Uranium-233
- C. Plutonium-239
- D. Both B. and C.
Explanation
Uranium-233 is produced by neutron irradiation of thorium, while plutonium-239 is produced from uranium-238 in reactors, so both are artificial nuclides. Uranium-235 occurs naturally, although only in a small proportion.
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