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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