An atom that emits an a-particle?

Physics

WAEC 2021

A. may become a different element.
B. becomes a different isotope of the element.
C. daughter with increased mass.
D. becomes a daughter of a different element always.

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Correct Answer: Option A

Explanation

Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and

thereby transforms or 'decays' into a different atomic nucleus, with a mass number that is reduced by four and an atomic number that is reduced by two.

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An atom that emits an a-particle?

Correct Answer: Option A

Explanation

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