Plutonium-239 Is Used as a Fuel for Some Nuclear Reactors

question 72

Short Answer

Plutonium-239 is used as a fuel for some nuclear reactors and also as the fissionable material in atomic bombs. It has a half-life of 24400 years. How long will it take 20 grams of plutonium-239 to decay to 3 grams? Round your answer to the nearest year. __________ years

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