Which of the following statements is true? A. As a radioactive isotope decays, i

Question

Which of the following statements is true?
A. As a radioactive isotope decays, its half-life remains the same and its rate of disintegration remains the same.
B. As a radioactive isotope decays, its half-life remains the same and its rate of disintegration increases over time.
C. As a radioactive isotope decays, its half-life remains the same and its rate of disintegration decreases over time.
D. As a radioactive isotope decays, its half-life decreases over time and its rate of disintegration remains the same.
E. As a radioactive isotope decays, its half-life decreases over time and its rate of disintegration decreases over time.

Explanation / Answer

C. As a radioactive isotope decays, its half-life remains the same and its rate of disintegration decreases over time.

because, half life is only dependent on the element(isotope) and rate of disintegration on the amount of isotope remaining.

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