▼ ▼ Part B Calculate Zeff for the 4s electron in a copper atom, Cu. Express your answer numerically. ►View Available Hint(s) Zelf = Submit Part C Zelf= —| ΑΣΦ Calculate for a 3d electron in a copper atom, Cu. Express your answer numerically. View Available Hint(s) Submit h ΠΑΠΙ ΑΣΦ 3 → C ? ?
▼ ▼ Part B Calculate Zeff for the 4s electron in a copper atom, Cu. Express your answer numerically. ►View Available Hint(s) Zelf = Submit Part C Zelf= —| ΑΣΦ Calculate for a 3d electron in a copper atom, Cu. Express your answer numerically. View Available Hint(s) Submit h ΠΑΠΙ ΑΣΦ 3 → C ? ?
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter7: The Structure Of Atoms And Periodic Trends
Section: Chapter Questions
Problem 58GQ: The configuration of an element is given here. (a) What is the identity of the element? (b) In what...
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Question
![Effective nuclear charge, Zeff, is defined as
where Z is true nuclear charge and S is the amount of shielding.
In 1930, John C. Slater devised the following set of empirical rules to estimate S for a designated ns or np electron:
i. Write the electron configuration of the element, and group the subshells as follows: (1s), (2s, 2p), (3s, 3p), (3d), (4s, 4p), (40), (4f), (5s, 5p), and so on.
ii. Electrons in groups to the right of the (ns, np) group contribute nothing to the shielding constant for the designated electron.
iii. All the other electrons in the (ns, np) group shield the designated electron to the extent of 0.35 each.
iv. All electrons in the n-1 shell shield to the extent of 0.85 each.
v. All electrons in the n
2 shell, or lower, shield completely-their contributions to the shielding constant are 1.00 each.
When the designated electron is in an nd or nf group, rules (i), (ii), and (iii) remain the same but rules (iv) and (v) are replaced by the following:
vi. Each electron in a group lying to the left of the nd or nf group contributes 1.00 to the shielding constant.
These rules are a simplified generalization based on the average behavior of different types of electrons.
▼
Part A
Calculate Zeff for a valence electron in an oxygen atom.
Express your answer numerically.
View Available Hint(s)
Zett =
[5] ΑΣΦ
Zett = Z – S
5
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Transcribed Image Text:Effective nuclear charge, Zeff, is defined as
where Z is true nuclear charge and S is the amount of shielding.
In 1930, John C. Slater devised the following set of empirical rules to estimate S for a designated ns or np electron:
i. Write the electron configuration of the element, and group the subshells as follows: (1s), (2s, 2p), (3s, 3p), (3d), (4s, 4p), (40), (4f), (5s, 5p), and so on.
ii. Electrons in groups to the right of the (ns, np) group contribute nothing to the shielding constant for the designated electron.
iii. All the other electrons in the (ns, np) group shield the designated electron to the extent of 0.35 each.
iv. All electrons in the n-1 shell shield to the extent of 0.85 each.
v. All electrons in the n
2 shell, or lower, shield completely-their contributions to the shielding constant are 1.00 each.
When the designated electron is in an nd or nf group, rules (i), (ii), and (iii) remain the same but rules (iv) and (v) are replaced by the following:
vi. Each electron in a group lying to the left of the nd or nf group contributes 1.00 to the shielding constant.
These rules are a simplified generalization based on the average behavior of different types of electrons.
▼
Part A
Calculate Zeff for a valence electron in an oxygen atom.
Express your answer numerically.
View Available Hint(s)
Zett =
[5] ΑΣΦ
Zett = Z – S
5
?
Transcribed Image Text:Part B
Calculate Zeff for the 4s electron in a copper atom, Cu.
Express your answer numerically.
►View Available Hint(s)
Zent =
Submit
Part C
D
ΠΫΠΙ ΑΣΦ
Zeft =
Calculate Zeff for a 3d electron in a copper atom, Cu.
Express your answer numerically.
View Available Hint(s)
Submit
4
ΠΫΠΙ ΑΣΦ
3
B
0
B
?
?
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