Carbon-14 Is a Radioactive Isotope Which Decays with a Half-Life

question 73

Multiple Choice

Carbon-14 is a radioactive isotope which decays with a half-life of 5730 years. What is the first-order rate constant for its decay, in units of years⁻¹?

• A)5.25 × 10 ⁻⁵ years ⁻¹
• B)1.21 × 10 ⁻⁴ years ⁻¹
• C)1.75 × 10 ⁻⁴ years ⁻¹
• D)3.49 × 10 ⁻⁴ years ⁻¹
• E)3.97 × 10 ³ years ⁻¹

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