The rate of decay of a radioactive substance is proportional to the amount of substance present. What is the half-life of a radioactive substance if it takes 5 years for one-third of the substance to decay? ? 9.55 years O 6.55 years O 10.55 years O 8.55 years ? 10.05 years
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This means that the rate of decay can be represented by the differential equation: dA/dt = -kA, where A is the amount of substance present, t is time, and k is the decay constant. Show more…
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