1.

Natural uranium is made up of

A. 99.282% U₂₃₈, 0.712% U₂₃₅, 0.006% U₂₃₄
B. 99.282% U₂₃₅, 0.712% U₂₃₈, 0.06%' U₂₃₄
C. 99.282% U₂₃₄, 0.712% U₂₃₈, 0.006% U₂₃₅
D. 99.282% U₂₃₅, 0.712% U₂₃₄, 0.006% U₂₃₈
Answer» B. 99.282% U₂₃₅, 0.712% U₂₃₈, 0.06%' U₂₃₄


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