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11 January, 20:56

Matilda has a 100 g rock sample. She knows that the rock contains uranium-238 and that the half-life of uranium-238 is 4.5 X 109 years. If she cuts the rock sample in half, what happens to the half-life of the uranium

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  1. 11 January, 22:10
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    I just answered this and got it correct so the half-life remains the same
  2. 12 January, 00:40
    0
    The half life period of the rock sample remains unchanged ... it will always be 4.5*10^9 yrs doesn't matter how many times you cut it
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