Cobalt-60 is a radioactive isotope that is widely utilized in nuclear medicine as a -ray source. It is formed through a neutron capture reaction with cobalt-59 and is a ß emitter; ß emission is associated with intense radiation. If Co-60 has a half-life of 5.27 years: a. How long will it take for the Co-60 source to be reduced to one-eighth of its initial concentration? b. What percentage of the Co-60 source will remain after three years (rounded to two decimal places)?

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Q: T D M M PPM M D 6H D 2H 1H PPM Lon

A: Spectrum 1 : 1,3-dibromo butane. Spectrum 2 : Isobutyl chloride.

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Q: Give a clear handwritten answer

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.