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NERD NERD
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6 years ago
Isotopes with which of the following half-lives are most useful in medical therapy?
 A) seconds to minutes
  B) minutes to hours
  C) hours to days
  D) days to years
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m7md9078m7md9078
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6 years ago
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NERD Author
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6 years ago
Good timing, thanks!
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This site is awesome
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You make an excellent tutor!
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