7. The 3s 3p4p configuration of an excited electronic state of the Si atom leads to a term with orbital angular momentum L = 1 and which is split by spin-orbit coupling into the levels shown below. Deduce possible term symbols for the three levels and indicate the dipole allowed transitions which would arise in absorption from these levels when the 4p electron is excited into a 5s orbital. ii i 160 cm-¹

7. The 3s 3p4p configuration of an excited electronic state of the Si atom leads to a term with orbital angular momentum L = 1 and which is split by spin-orbit coupling into the levels shown below. Deduce possible term symbols for the three levels and indicate the dipole allowed transitions which would arise in absorption from these levels when the 4p electron is excited into a 5s orbital. ii i 160 cm-¹

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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Electronic Transitions and Spectroscopy

The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.

Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.

Question

The 3s 3p4p configuration of an excited electronic state of the Si atom leads to a term with orbital
angular momentum L = 1 and which is split by spin-orbit coupling into the levels shown below. Deduce
possible term symbols for the three levels and indicate the dipole allowed transitions which would arise
in absorption from these levels when the 4p electron is excited into a 5s orbital.
7.
ii
160 cm1

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