The Half-Life of a Particular Radioactive Isotope of Element X

question 102

Multiple Choice

The half-life of a particular radioactive isotope of element X is 100 years. If you know that 400 years ago a fossil contained 10 mg of this isotope, you would expect to find about _______ in that fossil today.

• A) 5 mg
• B) 2.5 mg
• C) 0.6 mg
• D) 0.3 mg
• E) 0.15 mg

Understand the basic concepts of fixed, variable, and total costs in economic decision-making.

Distinguish between sunk costs and relevant costs for decision-making.

Apply the concept of opportunity cost accurately in various scenarios.

Recognize the differences between accounting costs and economic costs.