▾ Part B Using general tendencies and the chart given in the introduction, predict the most likely mode of decay of each of the following radioactive isotopes. Drag the appropriate items to their respective bins. ▸ View Available Hint(s) fluorine-17 thorium-232 iridium-164 iodine-137 a decay Submit decay P Pearson Reset Help calcium-50 Review | Constants | Periodic Table eemission capture
▾ Part B Using general tendencies and the chart given in the introduction, predict the most likely mode of decay of each of the following radioactive isotopes. Drag the appropriate items to their respective bins. ▸ View Available Hint(s) fluorine-17 thorium-232 iridium-164 iodine-137 a decay Submit decay P Pearson Reset Help calcium-50 Review | Constants | Periodic Table eemission capture
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
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
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
Number of neutrons
110
100
90
80
70
60
50
40
30
20
10
0
0
Belt of stability
mwing
10 20
ww
1:1 neutron-to-
proton ratio
30 40 50 60 70
Number of protons
80
1 of 1
▼
Part B
Using general tendencies and the chart given in the introduction, predict the most likely mode of decay of each of the following
radioactive isotopes.
Drag the appropriate items to their respective bins.
► View Available Hint(s)
fluorine-17 thorium-232 iridium-164 iodine-137
a decay
Submit
8 decay
P Pearson
Reset Help
calcium-50
< 5 of 43
Peemission capture
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
Number of neutrons
110
100
90
80
70
60
50
40
30
20
10
0
0
www
Belt of stability
10
1:1 neutron-to-
proton ratio
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: 2, 8, 20, 28, 50, 82
magic numbers of neutrons: 2, 8, 20, 28, 50, 82, 126, 184
▼
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.
Part A
Using general trends, predict the stability of the following nuclei.
Drag the appropriate items to their respective bins.
► View Available Hint(s)
radium-233 magnesium-24 arsenic-82 cadmium-112 potassium-44
Stable
P Pearson
Reset Help
Radioactive
5 of 43
Review | Constants | Periodic Table
Expert Solution
Step 1
Note - Since it is multiple questions, jece6
Here we have to predict the types of radioactivity radiation from n/p ratio of the following given nuclei.
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