A Typical Dose of a Radioactive Sample Is 27

question 74

Multiple Choice

A typical dose of a radioactive sample is 27.0 mCi. How long does it take for the activity to reduce to 0.100 mCi? The half-life of the sample is 211,000 y.

• A) 0.17 * 10⁵ y
• B) 0.17 * 10⁶ y
• C) 1.70 * 10⁵ y
• D) 1.70 *10⁴ y
• E) 1.70 *10⁶ y

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