Chemistry

Problem

State the correct mathematical relation between the half-life

T_{1/2}

of a radioactive isotope and its decay constant

\lambda

. a)

T_{1/2}=\dfrac{1}{\lambda}

T_{1/2}=\dfrac{2}{\lambda}

T_{1/2}=\dfrac{\ln 2}{\lambda}

T_{1/2}=\dfrac{1}{\lambda\,\ln 2}