How Long Will It Take a 4 $0.140 \mathrm { kBq }$

question 143

Multiple Choice

How long will it take a 4.50-kBq sample of material to reach an activity level of $0.140 \mathrm { kBq }$ if the half-life of the sample is 435 years?

• A) 3245 years
• B) 1993 years
• C) 2178 years
• D) 14,478 years

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Definitions:

Repurpose

To adapt something for a new use different from its original purpose.

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