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Which isotope of plutonium is used in nuclear bombs?

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in Chemistry – Class 12 by (188k points)
Which isotope of plutonium is used in nuclear bombs?

(a) P-238

(b) P-239

(c) P-240

(d) P-241

I got this question in unit test.

Origin of the question is D and F-Block Elements topic in portion D and F-Block Elements of Chemistry – Class 12

1 Answer

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Correct answer is (b) P-239

To elaborate: The most common plutonium isotope formed in a typical nuclear reactor is the fissile Pu-239, formed by neutron capture from U-238 (followed by beta decay), and which when fissioned yields much the same energy as the fission of U-235.

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