Question: In an experiment, the isotope 128I is created by the irradiation of 127I with a beam of neutrons that creates 1.5 x 106 128I nuclei

In an experiment, the isotope 128I is created by the irradiation of 127I with a beam of neutrons that creates 1.5 x 106 128I nuclei per second. Initially no 128I nuclei are present the half-life of 128I is 25 minutes.
(a) Graph the number of 128I nuclei present as a function of time.
(b) What is the activity of the sample I, 10, 25, 50, 75, and 180 minutes after irradiation begins?
(c) What is the maximum number of 128I atoms that can be created in the sample after it is irradiated for a long time? (This steady-state situation is called saturation.)
(d) What is the maximum activity that can be produced?

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