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 × 109 years. If she cuts the rock sample in half, what happens to the half-life of the uranium?
A. The half-life increases.
B. The half-life decreases.
C. The half-life remains the same.
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Matilda has a 100 g rock sample. She knows that the rock contains uranium-238 and that the half-life...
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