Radioactive decay (AQA A-Level Physics): Quizzes

Impossible to predict when a nucleus decays

Probability of decay per unit time

Initial number of nuclei

Time for half of nuclei to decay

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

$-\lambda$

Becquerels (Bq)

$A = \lambda N$

5730 years

6 hours