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If the halflife of technetium 99 m is 6 hours. After five half-lives what fraction of the original amount of technetium would remain?

waelhammad
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2022-10-21
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If the halflife of technetium 99 m is 6 hours. After five half-lives what fraction of the original amount of technetium would remain?

  1. 1/5
  2. 1/10
  3. 1/30
  4. 1/32
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waelhammad
2022-10-21
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D: The half-life of a particular radionuclide is the time it takes for half of the remaining atoms of that particular radionuclide to decay. (½)5 = 1/32

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