A sealed sample initially contains nuclei of a particular isotope whose half-life is…

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

Problem

A sealed sample initially contains

5.0\times10^{20}

nuclei of a particular isotope whose half-life is 15 days. After 45 days have elapsed, how many of the original nuclei remain undecayed? Give your answer in scientific notation.

Related theory

Chemical Kinetics

Browse the problem library