Properties of the Nucleus (HSC SSCE Physics): Flashcards

Unstable nuclei break down & emit radiation

Time for half the nuclei to decay

Impossible to predict

$N_t = N_0 e^{-\lambda t}$

$\lambda = \frac{\ln 2}{t_{1/2}}$

$\text{s}^{-1}$

Less than 5%

$N_t = N_0 (1/2)^n$

Minimizes patient radiation exposure

Exponential not linear