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Constructed Response . Topic 12: Nuclear Chemistry
Set H. Disintegration Series, decay mode, emitted particles
Base your answers to questions 19 through 22 on the information and graph below.
A U-238 atom decays to a Pb-206 atom through a series of steps. Each point on the
graph below represents a nuclide and each arrow represents a nuclear decay mode.
Teacher Preview Copy
Teacher Preview Copy
19. Explain why the U-238 disintegration series 19.
ends with the nuclide Pb-206.
20. Based on this graph, what particle is emitted 20.
during the nuclear decay of a Po-218 atom ?
21. Based on this graph, what is the mass of the particle 21.
emitted during the nuclear decay of Th-234?
22. Base on this graph, what is the decay mode of Bi-214? 22.
414 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Set H. Disintegration Series, decay mode, emitted particles
Base your answers to questions 19 through 22 on the information and graph below.
A U-238 atom decays to a Pb-206 atom through a series of steps. Each point on the
graph below represents a nuclide and each arrow represents a nuclear decay mode.
Teacher Preview Copy
Teacher Preview Copy
19. Explain why the U-238 disintegration series 19.
ends with the nuclide Pb-206.
20. Based on this graph, what particle is emitted 20.
during the nuclear decay of a Po-218 atom ?
21. Based on this graph, what is the mass of the particle 21.
emitted during the nuclear decay of Th-234?
22. Base on this graph, what is the decay mode of Bi-214? 22.
414 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
