How long would it take a 20 g sample of Thorium-234 to decay into only 5 grams of Thorium-234

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How long would it take a 20 g sample of Thorium-234 to decay into only 5 grams of Thorium-234

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Thu Thủy 4 years 2021-08-07T17:52:18+00:00 1 Answers 12 views 0

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  1. kimchi2
    0
    2021-08-07T17:53:49+00:00
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    Answer:

    dang u got a canvas test 2?

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )