## Question

###### The nuclide %Nb decays by first-order process with rate constant of 2.96 x [0-2 h-'. How long will it take for 86.0% of the initial amount of #Nb be consumed?33.7 h30 h66.4 h0 5.09 h4.72 h

The nuclide %Nb decays by first-order process with rate constant of 2.96 x [0-2 h-'. How long will it take for 86.0% of the initial amount of #Nb be consumed? 33.7 h 30 h 66.4 h 0 5.09 h 4.72 h

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