Which of the Following Radioisotope Would Be Least Likely to Be

question 85

Multiple Choice

Which of the following radioisotope would be least likely to be used in a medical application?

• A) barium-131 (half-life = 11.6 days)
• B) iodine-131 (half-life = 8 days)
• C) technecium-99m (half-life = 6 hours)
• D) plutonium-239 (half-life = 2.4  10⁴ years)
• E) fluorine-18 (109 minutes)

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Definitions:

Monthly

Pertaining to something that occurs, is calculated, or reported every month.

Variable Expense

An expense that changes in proportion to production output or sales.

Target Profit

The amount of net income a company aims to achieve for a specific period by setting certain sales targets and cost controls.

Monthly

Pertaining to something that occurs, is done, or calculated on a month-to-month basis.