The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it take for 90% of the lead to decay?

The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it take for 90% of the lead to decay?

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter5: Some Basic Nuclear Physics

Section: Chapter Questions

Problem 3P: A sample of 137Cs (half-life = 30.1 years) decays at a rate of 1010 decays per second. How long will...

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Structure of materials

The word ‘structure’ means the thing that is built or constructed from combining the different interrelated parts on a definite location on the ground surface. The structure should be able to possess sufficient rigidity against the external loads that are applied to it.

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The radioactive isotope of lead, PB-209, decays at a rate proportional to the amount present
at time tand has a half-life of 3.3 hours. If 1 gram of lead is present initially, how long will it
take for 90% of the lead to decay?

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The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours. If 1 gram of this isotope is present initially, how long will it take for 90% of the lead to decay? Select the correct response: 12.32 hours 10.96 hours none of the choices 8.92 hours
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