Graciouzgigi9983 Graciouzgigi9983
  • 22-05-2017
  • Physics
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After two hours, 1/16 of the initial amount of a certain radioactive isotope remains undecayed. The half-life of the isotope is:

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orisisa
orisisa orisisa
  • 22-05-2017
The half life is 30 minutes.
30 mins- 1/2 left
60 mins- 1/4 left
90 mins- 1/8 left
120 mins- 1/16 left
120 mins= 2 hours
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