Which of the following are correct statements? I. the alpha decay of 242Pu produ

Question

Which of the following are correct statements?
I. the alpha decay of 242Pu produces 238U II. The beta decay of 131I produces 131Xe III. The gamma decay of 60Ni changes neither its atomicnumber nor its mass number. IV. The emissions of a beta particle is accompanied by anincrease in the neutron/ proton ratio of the nucleus.
A. I and II B. I and III C. II, III, IV D. I, II, and III E. III and IV
I. the alpha decay of 242Pu produces 238U II. The beta decay of 131I produces 131Xe III. The gamma decay of 60Ni changes neither its atomicnumber nor its mass number. IV. The emissions of a beta particle is accompanied by anincrease in the neutron/ proton ratio of the nucleus.
A. I and II B. I and III C. II, III, IV D. I, II, and III E. III and IV

Explanation / Answer

I. TRUE II. TRUE III. TRUE IV. FALSE Therefore, the final answer is D.

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