Suppose 89

question 146

Multiple Choice

Suppose 89.4% of a sample of radioactive sodium-24 has decayed after two days.Estimate the half-life of Na-24.

• A)3.89 days
• B)3.24 days
• C)14.8 hours
• D)12.3 hours
• E)1.79 days

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Definitions:

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