Physics

Problem

A certain radionuclide has a decay constant of

1.2 \times 10^{-8}\,\text{s}^{-1}

. What is its half-life, expressed in years? a)

2.6\,\text{yr}

0.80\,\text{yr}

1.8\,\text{yr}

1.8 \times 10^{1}\,\text{yr}