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CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933

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FindFindarrow_forward

CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933
Interpretation Introduction

Interpretation:

The remaining mass of sample of 126I after 24h has to be identified from the given option.

Concept introduction:

  • Unstable nuclei emit radiation spontaneously to become stable nuclei by losing energy. This process of emission of radiation by unstable nuclei is known as radioactive decay.
  • Radioactive decay is in the first order kinetics. Rate of radioactive decay at a time t is,

lnNtN0=ktwhere,k=FirstorderrateconstantN0=number of radioactive nuclei at time zeroNt=number of radioactive nuclei at a time,t

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