As a sample of a radioactive nuclide decays, its half-life
A) decreases.
B) remains the same.
C) increases.
D) Any of these choices could be correct, depending upon the nuclide.

Question

Quizplus · Accepted Answer

The half-life of a radioactive nuclide is a characteristic property of that nuclide and remains constant regardless of the amount of the nuclide present or the conditions under which it is measured. Therefore, the half-life of a radioactive nuclide does not change as it decays, and the best answer is B, which states that the half-life remains the same.

As a Sample of a Radioactive Nuclide Decays, Its Half-Life