Explain, in one or two sentences, what fraction of an original sample of would remain…

CHEMISTRY · Subjective · US High School · Chemistry · Atomic Structure & Nuclear · Atomic Structure & Nuclear

Problem

Explain, in one or two sentences, what fraction of an original sample of

^{137}\text{Cs}

would remain after 60 years, given that the half-life of

^{137}\text{Cs}

is 30 years.