Chemistry

As a sample of the radioactive isotope 131 I decays, its half-life

a)decreases
b)increases
c)remains the same

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asked by Danny
  1. The half life of an element doesn't change.

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    posted by DrBob222
  2. remain the same

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    posted by Fiza
  3. ii

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    2. 👎 0
    posted by 8

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