Arrange the valence molecular orbitals of AB in decreasing energy (1 highest in energy; 6 lowest in energy). What is the bond order of the monoanionic form of AB, AB ? 3 1 2.5 1.5 3 4 Which is the highest occupied molecular orbital (HOMO) of AB? 6 The most probable identity of AB is | O O 1. 2.

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Chapter1: Chemical Foundations
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Arrange the valence molecular orbitals of AB in decreasing
energy (1 highest in energy; 6 lowest in energy).
What is the bond order of the monoanionic form of AB,
AB ?
3
1
2.5
1.5
3
4
Which is the highest occupied molecular orbital (HOMO) of
AB?
6
The most probable identity of AB is
|
O O
1.
2.
Transcribed Image Text:Arrange the valence molecular orbitals of AB in decreasing energy (1 highest in energy; 6 lowest in energy). What is the bond order of the monoanionic form of AB, AB ? 3 1 2.5 1.5 3 4 Which is the highest occupied molecular orbital (HOMO) of AB? 6 The most probable identity of AB is | O O 1. 2.
Consider a heteronuclear diatomic molecule, AB, where A
and B are period 2 elements.
Using the following pieces of information, provide details on
the molecular orbital diagram of AB:
Clue 1: The MO diagram of AB does not contain non-
bonding electrons.
Clue 2: The s and p orbital energies of both atoms are quite
close to one another that interactions between different
orbital types occur.
Clue 3: AB" is more stable than AB, but AB2 is less stable
than AB".
Clue 4: The potential energies of the atomic orbitals of A are
higher than the potential energies of the atomic orbitals of B.
Table 1. Atomic orbital energies of period 2 elements.
Atom
Orbital energy
Orbital energy
(2s)
(2p)
Li
-5.45
Ве
-9.30
B
-14.0
-8.30
C
-19.5
-10.7
-25.5
-13.1
-32.3
-15.9
F
-46.4
-18.7
Ne
-48.5
-21.5
Transcribed Image Text:Consider a heteronuclear diatomic molecule, AB, where A and B are period 2 elements. Using the following pieces of information, provide details on the molecular orbital diagram of AB: Clue 1: The MO diagram of AB does not contain non- bonding electrons. Clue 2: The s and p orbital energies of both atoms are quite close to one another that interactions between different orbital types occur. Clue 3: AB" is more stable than AB, but AB2 is less stable than AB". Clue 4: The potential energies of the atomic orbitals of A are higher than the potential energies of the atomic orbitals of B. Table 1. Atomic orbital energies of period 2 elements. Atom Orbital energy Orbital energy (2s) (2p) Li -5.45 Ве -9.30 B -14.0 -8.30 C -19.5 -10.7 -25.5 -13.1 -32.3 -15.9 F -46.4 -18.7 Ne -48.5 -21.5
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