Question: The plutonium isotope 239pu is produced as a by-product in nuclear reactors and hence is accumulating in our environment. It is radioactive; decaying with a

The plutonium isotope 239pu is produced as a by-product in nuclear reactors and hence is accumulating in our environment. It is radioactive; decaying with a half-life of 2.41 x 104 y.

(a) How many nuclei of Pu constitute a chemically lethal dose of 2.00 mg?

(b) What is the decay rate of this amount?

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