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JAMB Physics 2022 Objective — Question 16

Question 16 of 41 from the Joint Admissions and Matriculation Board (JAMB) Physics 2022 Objective paper, with the correct answer and a full explanation.

Element of nucleon number P, atomic number Q emits alpha particle. Resultant numbers:

A. P+2 and Q-2
B. P-4 and Q-2Correct
C. P-4 and Q+2
D. P+2 and Q+2

Explanation

Alpha decay: mass number −4, atomic number −2.

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