What causes radioactive decay?
Radioactive decay
{'answer_start': array([-1]), 'answer_text': array([''], dtype=object)}





t

1

/

2


=



ln
⁡
(
2
)

λ


=
τ
ln
⁡
(
2
)


{\displaystyle t_{1/2}={\frac {\ln(2)}{\lambda }}=\tau \ln(2)}






A
=
−




d

N



d

t



=
λ
N


{\displaystyle A=-{\frac {\mathrm {d} N}{\mathrm {d} t}}=\lambda N}







S

A



a

0


=
−




d

N



d

t






|



t
=
0


=
λ

N

0




{\displaystyle S_{A}a_{0}=-{\frac {\mathrm {d} N}{\mathrm {d} t}}{\bigg |}_{t=0}=\lambda N_{0}}

