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5. All the following isotopes undergo either alpha decay or beta decay. Predict which one occurs for each. You can take the average atomic mass for each element as an indicationo where the stable mass lies, and then judge whether the isotope's neutron/proton ratio ie toe l a or too low. (This is not 100% reliable in general, but will do for this question.) For one alpha decay, demonstrate numerically that the neutron/proton ratio does change in the appropriate direction. 183 1 30 a)Si 190 S187 192 c) 180W 74 I 193 d) 195Ir 184 b) 8Os 6. We saw in question 2 that positron emission is possible as a decay mode. In general, will this occur when the neutron/proton ratio is too high; or too low?

5. All the following isotopes undergo either alpha decay or beta decay. Predict which one occurs for each. You can take the average atomic mass for each element as an indicationo where the stable mass lies, and then judge whether the isotope's neutron/proton ratio ie toe l a or too low. (This is not 100% reliable in general, but will do for this question.) For one alpha decay, demonstrate numerically that the neutron/proton ratio does change in the appropriate direction. 183 1 30 a)Si 190 S187 192 c) 180W 74 I 193 d) 195Ir 184 b) 8Os 6. We saw in question 2 that positron emission is possible as a decay mode. In general, will this occur when the neutron/proton ratio is too high; or too low?

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter19: Nuclear Chemistry
Section: Chapter Questions
Problem 46AP
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5. All the following isotopes undergo either alpha decay or beta decay. Predict which one occurs for each. You can take the average atomic mass for each element as an indicationo where the stable mass lies, and then judge whether the isotope's neutron/proton ratio ie toe l a or too low. (This is not 100% reliable in general, but will do for this question.) For one alpha decay, demonstrate numerically that the neutron/proton ratio does change in the appropriate direction. 183 1 30 a)Si 190 S187 192 c) 180W 74 I 193 d) 195Ir 184 b) 8Os 6. We saw in question 2 that positron emission is possible as a decay mode. In general, will this occur when the neutron/proton ratio is too high; or too low?
Transcribed Image Text:5. All the following isotopes undergo either alpha decay or beta decay. Predict which one occurs for each. You can take the average atomic mass for each element as an indicationo where the stable mass lies, and then judge whether the isotope's neutron/proton ratio ie toe l a or too low. (This is not 100% reliable in general, but will do for this question.) For one alpha decay, demonstrate numerically that the neutron/proton ratio does change in the appropriate direction. 183 1 30 a)Si 190 S187 192 c) 180W 74 I 193 d) 195Ir 184 b) 8Os 6. We saw in question 2 that positron emission is possible as a decay mode. In general, will this occur when the neutron/proton ratio is too high; or too low?
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