An atom that emits an alpha-particle?
PHYSICS
WAEC 2021
An atom that emits an alpha-particle?
- 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.
Correct Answer: A. may become a different element.
Explanation
Alpha decay or ?-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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