The Half-Life of Plutonium-239 Is 24 100 Years

question 77

Multiple Choice

The half-life of plutonium-239 is 24 100 years .Calculate the percent of a plutonium sample left after 100 years.

• A) 99.7%
• B) 4.15%
• C) 90.0%
• D) 50.0%
• E) 96.4%

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