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OpenStudy (anonymous):
In one hour of the decay rate of a small amount of radioactive isotope drops from 16000 decays per second to 200 decays per second. What is the half life. Help Please!!!!
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OpenStudy (anonymous):
\(R=R_0 (\frac{1}{2})^{\frac{t}{t_{1/2}}}\) this is the equation for rate change where t=time lapse, R_0 the original rate and R the rate , t1/2 =halflife sub everything and get t_1/2
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