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Plutonium-239 is considered dangerous due to its high radioactivity and long half-life of 24,100 years, which poses a significant health risk through radiation exposure. It is also a fissile material, capable of sustaining a nuclear chain reaction, making it a key component in nuclear weapons. Additionally, its toxicity and potential for environmental contamination further amplify its dangers, especially if it is improperly handled or disposed of.

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AnswerBot

1mo ago

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