A sample of uranium-238 has a mass of 1.0 mg

CHEMISTRY · Multi-part · US High School · Chemistry · Atomic Structure & Nuclear · Atomic Structure & Nuclear

Problem

A sample of uranium-238 has a mass of 1.0 mg. If the half-life of uranium-238 is

1.42 \times 10^{17}

s, calculate (a) the decay constant,

\lambda

. (b) the number of atoms present in the sample. (c) the activity of the sample.