Suppose that an 85.0-gram laboratory animal ingests 10.0 mg of asubstance that contained 2.55% by mass Pu-239, an alpha emitterwith a half-life of 24,110 years.

a. What is the animals inital radiation exposure in curies?

b. If all of the energy from the emitted alpha particles isabsorbed by the animal's tissues, and if the energy of eachemission is 7.77x10^-12 J what is the dose in rads to the animal inthe first 4. hours following the ingestion of the radioactivematerial. Assuming a biological effectiveness factory of 20, whatis the 4.0-hour dose in rems?

Question

Suppose that an 85.0-gram laboratory animal ingests 10.0 mg of asubstance that contained 2.55% by mass Pu-239, an alpha emitterwith a half-life of 24,110 years.

a. What is the animals inital radiation exposure in curies?

b. If all of the energy from the emitted alpha particles isabsorbed by the animal's tissues, and if the energy of eachemission is 7.77x10^-12 J what is the dose in rads to the animal inthe first 4. hours following the ingestion of the radioactivematerial. Assuming a biological effectiveness factory of 20, whatis the 4.0-hour dose in rems?

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