A sample of radon-222 initially has a mass of 1.78 mg

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

Problem

A sample of radon-222 initially has a mass of 1.78 mg. The half-life of radon-222 is 3.8 days. Determine (i) the mass remaining after 11.4 days and (ii) that remaining mass as a percentage of the original mass.

Related theory

Browse the problem library