A nucleus with mass number "A" and atomic number "Z" undergoes β+ decay. The mass number and atomic number, respectively, of the daughter nucleus are:
Correct answer: C. A, Z-1
- A. A - 1 , Z - 1
- B. A + 1 , Z - 1
- C. A, Z-1
- D. A, Z+1
Explanation
For β+ decay, Z will decrease 1 unit and A will not change.Option C is correct because mass number (A) is zero and atomic number (Z) is -1 for a beta particle.
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