Bundle: Physical Chemistry, 2nd + Student Solutions Manual
2nd Edition
ISBN: 9781285257594
Author: David W. Ball
Publisher: Cengage Learning
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Question
Chapter 15, Problem 15.34E
Interpretation Introduction
Interpretation:
The values of
Concept introduction:
A term symbol describes the orbital, spin and total angular momenta of an electronic state. The symbol
In case of diatomic molecules, the term symbol is given by the formula as shown below.
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For each of the statements below, indicate whether it is true or false and explain your reasoning. (1
sentence )
1/ It takes more energy to ionize an electron from the 2s orbital than an electron from the 2p orbital
in the Li2+ ion.
2/ The electron affinity of the Ne atom is larger than the electron affinity of the F atom.
3/ K* has a larger radius than Ar.
4/ For a diatomic molecule, in which the internuclear axis is the z-axis, the 3dz? orbital cannot mix
with the 2px orbital.
5/ The internuclear distance of O2 increases as it takes an additional electron to become O2".
Write the complete ground-state electron configuration of Cd²+.
For multi-digit superscripts or coefficients, use each number in succession.
although we associate
Pz
2. Now we will move on to diatomic molecules. In atoms all p-orbitals are equivalent
with m/= 0, and px py with m/= ±1. In diatomic
molecules these orbitals are in fact separated, with pz associated with o orbitals
along the internuclear axis and px py associated with л orbitals (m/= ±1). In
determining electron configurations we do indeed separate them: N₂ (KK¹ 0₂²).
and O2 (KKogu ng *2).
4
a. Two excited states of N₂ are associated with Tu
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Tg and
og
→ ou*
i.
Draw the MO energy level scheme (p-orbitals only) for the N₂
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ii.
Obtain the term symbols for the two excited states and order
them according to Hund's rules.
iii. Write the wave functions for each of the terms obtained in ii)
above.
iv. Pick one wave function from each excited state and show it
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Chapter 15 Solutions
Bundle: Physical Chemistry, 2nd + Student Solutions Manual
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