Solve this multiple-choice question and choose the correct option.

Predominant naturally occurring isotope of uranium: choose the correct nuclide. Select the isotope that is most abundant in natural uranium.

Difficulty: Easy

U-235
U-238
Pu-233
Pu-239

Correct Answer: U-238

Explanation:

GivenNatural uranium composition by atom fraction is approximately 99.3% U-238 and 0.7% U-235 (U-234 trace).

Final AnswerU-238.

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