A radionuclide has a measured half-life

PHYSICS · Multi-part · Fermi University Physics · Nuclear Physics · Radioactivity and decay modes · Radioactivity and decay modes

The Nucleus Resolved, Ch Decay rates from the golden rule: kinetics closed and alpha decay finished

Problem

T_{1/2} = 45.6\,\mathrm{min}

. It decays

92.0\%

of the time by

\beta^-

emission and

8.0\%

of the time by

\alpha

emission, with no other branches. ((a)) Find the partial half-life for the

\beta^-

branch. ((b)) Find the partial half-life for the

\alpha

branch.