JAMB Physics 2014 Objective — Question 45

Question 45 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2014 Objective paper, with the correct answer and a full explanation.

When an atom undergoes a beta decay, the atomic number of the nucleus

A. decreases by one
B. increases by oneCorrect
C. becomes zero
D. remains unchanged

Explanation

When an atom undergoes a beta decay, the atomic number increases by one while the mass number is unaffected.

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