Name__________________________
Section_________Date____________
Report for Experiment 48
Electron Probability
Data/Observations
Fill in the following table.
Ring Number
1
Average
distance
from target
center (cm)
0.5
Area of
ring (cm2)
2
1.5
9.4
3
2.5
16
4
3.5
22
5
4.5
28
6
5.5
35
7
6.5
41
8
7.5
47
9
8.5
53
10
9.5
60
Number of hits
in the ring
Number of hits per
unit area (hits/cm2)
3.1
Analysis and Conclusions
1. Which is the ring with the highest probability of finding a hit?
2. Which is the ring with lowest probability of finding a hit?
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3. On the paper at the end of this report sheet construct a graph of the number of hits vs. average
distance from the center.
4. On the paper at the end of this report sheet construct a graph of hits per unit area vs. average
distance from the center. Use a different color than you used for the curve in 4.
5. What does the graph of the number of hits vs. average distance represent? Account for its
shape.
6. What does the graph of the hits per unit area vs. average distance represent? Account for its
shape.
7. Is the maximum of each graph the same? Explain.
8. How well can we model an orbital with a dartboard and a dart? Specifically, focus on the
following:
a. Compare your target with Figure 11.15 in your text. How is it similar? How is it different?
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b. Why do we predict an electron should be near the nucleus? Why do we expect the dart to
land in the center of the target?
Something Extra
How would changing the number of drops affect your results? Do the experiment with 10 drops
and with 500 drops and compare your results.
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Report for Experiment 48
Name__________________
Title:
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