Chemistry

Problem

Which one of the following gives the correct relation between the half-life

T_{1/2}

of a radioisotope and its decay constant

\lambda

? a)

\displaystyle \frac{2}{\lambda}

\displaystyle \frac{\ln 2}{\lambda}

\displaystyle \frac{1}{\lambda\,\ln 2}

\displaystyle \frac{0.301}{\lambda}