$$ N = N_0 e^{-kt} \quad \mathrm{or} \quad \frac{N}{N_0} = e^{-kt} $$
$$N_0$$ = initial nuclei, $$N$$ = nuclei at time $$t$$, $$k$$ = decay constant.
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CAT Formulas
Chemical Kinetics
Radioactive Decay (First Order)
$$ N = N_0 e^{-kt} \quad \mathrm{or} \quad \frac{N}{N_0} = e^{-kt} $$
$$N_0$$ = initial nuclei, $$N$$ = nuclei at time $$t$$, $$k$$ = decay constant.
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