A Certain Radioactive Isotope Has a Rate Constant of Decay

question 126

Multiple Choice

A certain radioactive isotope has a rate constant of decay of 2.90 × 10^-2 min^-1.Calculate the time required for a sample of this isotope to decay to one-fourth of its initial value.

• A) 23.9 min
• B) 29.9 min
• C) 0.0580 min
• D) 47.8 min
• E) 2.90 min

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