3. A beta particle is an electron emitted by the atomic nucleus during radioactive decay. a. True b. False

Which of the following statements about nuclear fission is true?  a. No new elements can be produced in a fission reaction. b. Energy released in fission reactions is generally less than that from fusion reactions.  c. In a fission reaction, two light nuclei are combined into a heavier one.  d. Fission reactions can be explained on the basis of the conservation of mass-energy.

3. A 100kg sample of Neptunium 234 (Np234) was accidentally released due to the gross negligence of Jerf, the worst nuclear engineer ever. A. Jerf plans to act as though nothing happened until 95% of the sample has decayed into other elements. How long will they have to keep waffling about pretending to do experiments? (hint: Wikipedia knows the half-life of (Np234)) B. After two weeks, Jarrison, Jerf's supervisor, notices Jerf has had a minor decrease in productivity and decides to confront Jerf. Realizing their jig is up, Jerf decides to eat as much as they can before Jarrison notices. Assuming they eat 5 kgs of Np 234, how much is left for Jarrison to find? C. Following this incident, Jarrison, along with the EPA, makes a graph detailing the amount of Np 234 in Jerf's lab. Draw this graph and label all important events. Do not include the amount of Np234 that Jerf ingested, as a serendipitous genetic immunity to radiation Jerf inherited is the only reason they did not succumb to…

7. In a nuclear accident, a lab worker receives a dose of D rads of radiation of x rays having an RBE of 1. If instead he had been exposed to the same amount of energy from alpha particles having an RBE of 20, his exposure would have been (there may be more than one correct choice) A. D rads. B. 20D rads. C. D rem. D. 20D rem.