60/27 Co decays with a half-life of 5.27 years to produce 60/28 Ni.(a) What is the decay constant for the radioactive disintegration of cobalt-60?(b) Calculate the fraction of a sample of the 60/27 Co isotope that will remain after 15 years.(c) How long does it take for a sample of 60/27 Co to disintegrate to the extent that only 2.0% of the original amount remains?

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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.