A. Uranium and neutrons
B. Radium and polonium
C. Nitrogen and neutrons
D. Uranium and α – particles.
Correct Answer:
Option A – Uranium and neutrons
A. Uranium and neutrons
B. Radium and polonium
C. Nitrogen and neutrons
D. Uranium and α – particles.
Correct Answer:
Option A – Uranium and neutrons
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