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An approximate orbital model for the ground state of He uses the 1s atomic orbitals for Het, for which Z = 2. Which of the following statements describes correctly the situation that pertains to a change to a more appropriate value?

An approximate orbital model for the ground state of He uses the 1s atomic orbitals for Het, for which Z = 2. Which of the following statements describes correctly the situation that pertains to a change to a more appropriate value?

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter5: Quantum Mechanics And Atomic Structure
Section: Chapter Questions
Problem 5P: Estimate the probability of finding an electron which is excited into the 2s orbital of the H atom,...
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An approximate orbital model for the ground state of He uses the 1s atomic orbitals for Het, for which Z = 2. Which of the following statements describes correctly the situation that pertains to a change to a more appropriate value? O The improved Z value is larger than 2, and the orbitals become more contracted. The improved Z value is smaller than 2 but this only affects the computed energy, and not orbital size. O The improved Z value is smaller than 2, and the orbitals become more contracted. O The improved Z value is larger than 2, and the orbitals become more expanded. The improved Z value is smaller than 2, and the orbitals become more expanded.
Transcribed Image Text:An approximate orbital model for the ground state of He uses the 1s atomic orbitals for Het, for which Z = 2. Which of the following statements describes correctly the situation that pertains to a change to a more appropriate value? O The improved Z value is larger than 2, and the orbitals become more contracted. The improved Z value is smaller than 2 but this only affects the computed energy, and not orbital size. O The improved Z value is smaller than 2, and the orbitals become more contracted. O The improved Z value is larger than 2, and the orbitals become more expanded. The improved Z value is smaller than 2, and the orbitals become more expanded.
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