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Detailed calculations show that the value of Zeff for the outermostelectrons in Si and Cl atoms is 4.29+ and 6.12+, respectively.(a) What value do you estimate for Zeff experienced bythe outermost electron in both Si and Cl by assuming coreelectrons contribute 1.00 and valence electrons contribute0.00 to the screening constant? (b) What values do you estimatefor Zeff using Slater’s rules? (c) Which approach gives amore accurate estimate of Zeff? (d) Which method of approximationmore accurately accounts for the steady increase inZeff that occurs upon moving left to right across a period?(e) Predict Zeff for a valence electron in P, phosphorus, basedon the calculations for Si and Cl.

Detailed calculations show that the value of Zeff for the outermostelectrons in Si and Cl atoms is 4.29+ and 6.12+, respectively.(a) What value do you estimate for Zeff experienced bythe outermost electron in both Si and Cl by assuming coreelectrons contribute 1.00 and valence electrons contribute0.00 to the screening constant? (b) What values do you estimatefor Zeff using Slater’s rules? (c) Which approach gives amore accurate estimate of Zeff? (d) Which method of approximationmore accurately accounts for the steady increase inZeff that occurs upon moving left to right across a period?(e) Predict Zeff for a valence electron in P, phosphorus, basedon the calculations for Si and Cl.

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
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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Detailed calculations show that the value of Zeff for the outermost
electrons in Si and Cl atoms is 4.29+ and 6.12+, respectively.
(a) What value do you estimate for Zeff experienced by
the outermost electron in both Si and Cl by assuming core
electrons contribute 1.00 and valence electrons contribute
0.00 to the screening constant? (b) What values do you estimate
for Zeff using Slater’s rules? (c) Which approach gives a
more accurate estimate of Zeff? (d) Which method of approximation
more accurately accounts for the steady increase in
Zeff that occurs upon moving left to right across a period?
(e) Predict Zeff for a valence electron in P, phosphorus, based
on the calculations for Si and Cl.

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