For a particular isotope

CHEMISTRY · Single correct · US High School · Chemistry · Atomic Structure & Nuclear · Atomic Structure & Nuclear

Problem

For a particular isotope, plotting

\ln A

against time yields a straight line with slope

-0.025\,\text{s}^{-1}

. Calculate the half-life of the isotope. (a)

40\,\text{s}

(b)

28\,\text{s}

(c)

0.025\,\text{s}

(d)

12\,\text{s}