The Number of a Certain Radioactive Nuclide Present in a Sample

question 80

Multiple Choice

The number of a certain radioactive nuclide present in a sample decays from 160.to 20.in 39 minutes.What is the half-life of this radioactive species?

• A)8 minutes
• B)13 minutes
• C)18 minutes
• D)23 minutes
• E)28 minutes

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Definitions:

Short Run

A period in economics during which some factors of production are fixed, limiting the ability to fully adjust to market changes.

Elasticity of Market Supply

The degree to which the quantity supplied of a good changes in response to a change in price.

Output Expansion

The increase in the production of goods and services in an economy or by a firm, often as a result of increased demand or improved production capabilities.

Period Lengthened

The extension of time allocated for a particular activity, phase, or process.