Carbon-14 has a half-life of 5 , 730 years

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

Problem

Carbon-14 has a half-life of 5{,}730 years. Approximately how many years must pass before 80\% of an initial sample remains? (a)

2.29\times 10^{3}\ \text{yr}

(b)

1.28\times 10^{3}\ \text{yr}

(c)

1.84\times 10^{3}\ \text{yr}

(d)

3.68\times 10^{3}\ \text{yr}