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

question 85

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 *10³ years¯¹

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