Chapter 21: Q19E (page 1204)
Question:What are the types of radiation emitted by the nuclei of radioactive elements?
Short Answer
Types of radiation emitted by radioactive elements:
Alpha particles, beta particles, gamma rays, and neutrons.
Chapter 21: Q19E (page 1204)
Question:What are the types of radiation emitted by the nuclei of radioactive elements?
Types of radiation emitted by radioactive elements:
Alpha particles, beta particles, gamma rays, and neutrons.
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Get started for freeWrite the balanced nuclear equation for the production of the following transuranium elements:
(a) berkelium-244, made by the reaction of Am-241 and He-4
(b) fermium-254, made by the reaction of Pu-239 with a large number of neutrons
(c) lawrencium-257, made by the reaction of Cf-250 and B-11
(d) dubnium-260, made by the reaction of Cf-249 and N-15
If \({\rm{1}}{\rm{.000 g}}\) of \({}_{{\rm{88}}}^{{\rm{226}}}{\rm{Ra}}\) produces \({\rm{0}}{\rm{.0001 mL}}\) of the gas \({}_{{\rm{88}}}^{{\rm{222}}}{\rm{Rn}}\) at \({\rm{STP}}\) (standard temperature and pressure) in \({\rm{24 h}}\), what is the half-life of \({}^{{\rm{226}}}{\rm{Ra}}\) in years?
Given specimens neon-24 and bismuth-211 (\(\left( {{t_{1/2}} = 3.38\;{\rm{min}}} \right)\)\(\left. {{t_{1/2}} = 2.14\;{\rm{min}}} \right)\)of equal mass, which one would have greater activity and why?
Question: Which of the following nuclei is most likely to decay by positron emission? Explain your choice.
(a) chromium\({\rm{ - 53}}\)
(b) manganese\({\rm{ - 51}}\)
(c) iron\({\rm{ - 59}}\)
Given specimens uranium\({\rm{ - 232}}\)(\({{\rm{t}}_{{\rm{1/2}}}}{\rm{ = 68}}{\rm{.9 y}}\)) and uranium\({\rm{ - 233}}\)(\({{\rm{t}}_{{\rm{1/2}}}}{\rm{ = 159,200 y}}\)) of equal mass, which one would have greater activity and why?
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