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!PLEASE HELP ASAP! what is the half-life of the radioactive isotope? what mass of the radioactive isotope will be left after three(3) half-lives?

!PLEASE HELP ASAP! what is the half-life of the radioactive isotope? what mass of-example-1
User Mkadunc
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The half-life of a radioactive isotope is the amount of time it takes for one-half of the radioactive isotope to decay. The half-life of a specific radioactive isotope is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.
User Jonathan Mee
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