The Number of a Certain Radioactive Nuclide Present in a Sample

question 26

Multiple Choice

The number of a certain radioactive nuclide present in a sample decays from 2.2  10² to 6.2  10¹ in 29 minutes. What is the half-life of this radioactive species?

• A) 2.0  10¹ minutes
• B) 4.4  10^-2 minutes
• C) 1.6  10¹ minutes
• D) 7.1  10¹ minutes
• E) 3.7 minutes

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