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Using general trends, predict the stability of the following nuclei. Drag the appropriate items to their respective bins. > View Available Hint(s) Reset Help cadmium-112 arsenic-82 radium-233 potassium-44 magnesium-24

Using general trends, predict the stability of the following nuclei. Drag the appropriate items to their respective bins. > View Available Hint(s) Reset Help cadmium-112 arsenic-82 radium-233 potassium-44 magnesium-24

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 2RQ
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Identification and Characterization of Unstable and Stable Nuclei Nuclear stability can in general be predicted based on the following considerations: • Nuclei with 84 protons or more are unstable. Nuclei containing a magic number of protons and/or neutrons tend to be stable. • Stable nuclei often contain even numbers of protons and/or neutrons. These factors are reflected in the given graph (Figure 1), which shows the valley of stability as a function of number of neutrons and protons. Figure 110 100 90 sulognau jo zaqung 80 70 60 50 40 30 201 10 0 0 Belt of stability www.x N 1:1 neutron-to- proton ratio 10 20 30 40 50 60 70 80 Number of protons < 1 of 1 > "Magic" numbers A magic number is the name given to certain numbers of protons or neutrons that have a high correlation to stability in nuclei: magic numbers of protons: magic numbers of neutrons: ▼ Part A A plot of the number of neutrons versus the number of protons for all known stable nuclei, represented by reddish brown dots on the graph, shows that these nuclei cluster together in a region known as the valley of stability. Nuclei with a ratio that is too high tend to undergo beta decay. Nuclei with a ratio that is too low tend to undergo positron emission or electron capture. 2, 8, 20, 28, 50, 82 2, 8, 20, 28, 50, 82, 126, 184 Using general trends, predict the stability of the following nuclei. Drag the appropriate items to their respective bins. ▸ View Available Hint(s) cadmium-112 arsenic-82 Stable Submit radium-233 potassium-44 magnesium-24 P Radioactive Reset Help P Pearson 5 of 43 Review | Constants | Periodic Table
Transcribed Image Text:Identification and Characterization of Unstable and Stable Nuclei Nuclear stability can in general be predicted based on the following considerations: • Nuclei with 84 protons or more are unstable. Nuclei containing a magic number of protons and/or neutrons tend to be stable. • Stable nuclei often contain even numbers of protons and/or neutrons. These factors are reflected in the given graph (Figure 1), which shows the valley of stability as a function of number of neutrons and protons. Figure 110 100 90 sulognau jo zaqung 80 70 60 50 40 30 201 10 0 0 Belt of stability www.x N 1:1 neutron-to- proton ratio 10 20 30 40 50 60 70 80 Number of protons < 1 of 1 > "Magic" numbers A magic number is the name given to certain numbers of protons or neutrons that have a high correlation to stability in nuclei: magic numbers of protons: magic numbers of neutrons: ▼ Part A A plot of the number of neutrons versus the number of protons for all known stable nuclei, represented by reddish brown dots on the graph, shows that these nuclei cluster together in a region known as the valley of stability. Nuclei with a ratio that is too high tend to undergo beta decay. Nuclei with a ratio that is too low tend to undergo positron emission or electron capture. 2, 8, 20, 28, 50, 82 2, 8, 20, 28, 50, 82, 126, 184 Using general trends, predict the stability of the following nuclei. Drag the appropriate items to their respective bins. ▸ View Available Hint(s) cadmium-112 arsenic-82 Stable Submit radium-233 potassium-44 magnesium-24 P Radioactive Reset Help P Pearson 5 of 43 Review | Constants | Periodic Table
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