Physics

Physics

Problem

A radionuclide has

N_0 = 5.0\times10^{17}

undecayed nuclei and a decay constant

\lambda = 0.002\,\text{s}^{-1}

. How many nuclei will disintegrate in the first

200\,\text{s}

? a)

1.6\times10^{17}

b)

3.3\times10^{17}

c)

2.0\times10^{17}

d)

2.5\times10^{17}

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