WAEC Physics 2021 Objective — Question 18
Question 18 of 50 from the West African Examinations Council (WAEC) Physics 2021 Objective paper, with the correct answer and a full explanation.
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18. An atom that emits an α-particle
- A. may become a daughter of a different element
- B. becomes a different isotope of the element
- C. becomes a daughter with increased mass
- D. becomes a daughter of a different elementCorrect
Explanation
Alpha decay reduces the proton number by 2, changing the atom into a daughter of a different element.
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