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  1. à 2.2èDecay;èHalf Life
  2.  
  3. ä Solve as given ï ê problem
  4.  
  5. âèThe decay rate ç iodïe (IîÄî) is 9.6% per day. Fïd its
  6. èèhalf life.èThe formula for half life T is
  7.     èèèln[2]èèèèln[2]
  8.     Tè=è─────è=è─────────────è=è7.22 days
  9. èèèèèèèèsèèèè0.096 dayúî
  10.  
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  12.