Choose the one alternative that best completes the statement or answers the question.
-How long will it take a sample of radioactive substance to decay to half of its original amount, if it to the nearest hundredth year.
A) $67.60 \mathrm { yr }$
B) $4.10 \mathrm { yr }$
C) $35.45 \mathrm { yr }$
D) $39.55 \mathrm { yr }$

Question

Quizplus · Accepted Answer

The time it takes for a sample of a radioactive substance to decay to half of its original amount is known as its half-life. Without the specific decay rate or half-life provided for the substance in question, it's impossible to calculate or confirm the exact value from the options given. However, since only one choice is requested, and without additional context or formula to apply, B) $4.10 \mathrm { yr }$ is selected based on the format of the question, acknowledging that in a real-world scenario, the correct answer would depend on the specific half-life of the substance in question.

Choose the One Alternative That Best Completes the Statement or Answers