Concept explainers
(a)
Interpretation: The molecular ions with one or more unpaired electron from the given molecules are to be identified.
Concept introduction: When two atomic orbitals come close to each other they lose their identity and form new pair of orbitals knows as molecular orbitals. Among the two molecular orbitals formed, one has energy lower than the atomic orbitals is known as bonding molecular orbital and the other has energy higher than the atomic orbitals and is known as antibonding molecular orbital. The filling electrons in molecular orbitals follow Aufbau’s principle and Hund’s rule.
To determine: If the molecular ion
(a)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Nitrogen has five valence electrons.
The total number of valence electrons in
According to the molecular orbital theory, the electronic configuration of
One unpaired electron is present in
(b)
To determine: If the molecular ion
(b)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Oxygen has six valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
One unpaired electron is present in the
(c)
To determine: If the molecular ion
(c)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Carbon has four valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
One unpaired electron is present in the
(d)
To determine: If the molecular ion
(d)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Bromine has seven valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
No unpaired electron is present in any orbital of
(e)
To determine: If the molecular ion
(e)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Oxygen has six valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
One unpaired electron is present in the
(f)
To determine: If the molecular ion
(f)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Oxygen has six valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
No unpaired electron is present in any orbital of
(g)
To determine: If the molecular ion
(g)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Nitrogen has five valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
Two unpaired electrons are present in
(h)
To determine: If the molecular ion
(h)
Answer to Problem 9.93QP
Solution
The
Explanation of Solution
Explanation
Fluorine has seven valence electrons.
The total number of valence electrons in
According to the molecular orbital theory the electronic configuration of
One unpaired electron is present in
Conclusion
The molecules which contain unpaired electrons in their molecular orbitals are paramagnetic in nature. All the molecular ion species except
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Chapter 9 Solutions
Chemistry
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