Chemistry — Radioactive Half-Life
Decay law, half-life and activity.
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N = N_0 \left(\tfrac{1}{2}\right)^{t/t_{1/2}}
t_{1/2} = \frac{\ln 2}{\lambda}
A = \lambda N
\ln\frac{N}{N_0} = -\lambda t
Decay law, half-life and activity.
N = N_0 \left(\tfrac{1}{2}\right)^{t/t_{1/2}}
t_{1/2} = \frac{\ln 2}{\lambda}
A = \lambda N
\ln\frac{N}{N_0} = -\lambda t