Natural lithium consists of 7.5 % and 92.5 %

CHEMISTRY · Subjective · A Level · Chemistry · Atomic structure · Atomic structure

Problem

Natural lithium consists of 7.5 %

^{6}\text{Li}

and 92.5 %

^{7}\text{Li}

. A processed lithium sample shows equal intensities for

^{6}\text{Li}

and

^{7}\text{Li}

peaks. Calculate the enrichment factor for

^{6}\text{Li}

in the processed sample, defined as the ratio

\dfrac{(^{6}\text{Li}/^{7}\text{Li})_{\text{sample}}}{(^{6}\text{Li}/^{7}\text{Li})_{\text{natural}}}

. Give your answer to two significant figures.