The Half-Life of Carbon-11 Is 20

question 112

Multiple Choice

The half-life of carbon-11 is 20.3 minutes.How much of a 100.0 mg sample remains after 1.6 hours?

• A)3.77 mg
• B)0.0377 mg
• C)94.7 mg
• D)1.75 × 10^-89 _mg
• E)99.9 mg

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