It Is Known That 75% of a Radionuclide Decays Away

question 22

Multiple Choice

It is known that 75% of a radionuclide decays away in 12 hours.If starting with 10 mCi, how much will be left after 6 hours?

• A)7.5 mCi
• B)5 mCi
• C)2.5 mCi
• D)1.25 mCi

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Definitions:

Prevail

To be widespread or dominant, or to win against opposing forces.

Concentration Ratio

A measure used in economics to assess the extent of market control held by the largest firms within an industry.

Profit-maximizing Output

The level of production at which a firm achieves the highest possible profit, where marginal cost equals marginal revenue.

Total Cost

The sum of all costs required to produce a certain amount of a good or service, including fixed and variable costs.