Radioactive Elements Decay Via First-Order Kinetics

question 48

Multiple Choice

Radioactive elements decay via first-order kinetics. Consider a certain type of nucleus that has a rate constant of 1.6 10^-2 h^-1. A sample contains 7.9  10⁸ radioactive nuclides. Calculate the time required for 63% of the nuclides to decompose.

• A) 1.3  10¹ h
• B) 1.3  10^-1 h
• C) 2.7  10¹ h
• D) 2.9  10¹ h
• E) 6.2  10¹ h

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A chain of consistent payment transactions transpiring at the end of regular intervals within a set duration.

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The current worth of a future sum of money or stream of cash flows, given a specified rate of return.

Accurate To The Cent

Refers to financial or accounting figures that are exact to the smallest unit of currency, usually to a cent.