The decay of a nucleus is accompained by the emission of two β-particles and α-radiation. What effect (if any) does this decay have on the proton number and the nucleon number of the nucleus?
Correct answer: C. Option C
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Emission of two beta particles increases the proton number by 2 i.e. after each beta decay, proton number increases by 1. The nucleon number remains unchanged. After an alpha decay, emission of an alpha particle i.e. helium nucleus, the proton number decreases by 2 and the nucleon number decreases by 4. Hence, the net effect would be the proton number being unchanged and a decrease in the nucleon number.
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