Krypton-85 Has a Half-Life of 10 Years

question 38

Multiple Choice

Krypton-85 has a half-life of 10 years. Approximately what percentage of Kr-85 produced from the Chernobyl accident in 1986 still remains radioactive in 2010?

• A) 25%
• B) 12%
• C) 6%
• D) 3%

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Conceptualize

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DSM-5

The Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, a comprehensive classification and diagnostic tool for mental disorders used by professionals in psychiatry, psychology, and healthcare.

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