(a)
Interpretation:
The probability of the presence of an electron at nucleus A in the bonding and also in the antibonding orbitals is to be calculated.
Concept introduction:
Electronic configuration tells about the arrangement of the electrons in each subshell and each orbital of an atom. The distribution of the electrons in the molecules is described by the molecular orbital theory. The unoccupied molecular orbital having lowest energy is known as the LUMO and the occupied molecular orbital having highest energy is known as the HOMO.
(a)

Answer to Problem 9B.2P
The probability of the presence of an electron at nucleus A in the bonding orbital is
Explanation of Solution
It is given that a small-electron probe having volume
The value of R is
The value of
The value of
The expression that is used represent probability of finding an electron is given below.
Where,
The distance between A and B is
Figure 1
The value of
Substitute the values of
Substitute the values of
Therefore, the probability of the presence of an electron at nucleus A in the bonding orbital is
(b)
Interpretation:
The probability of the presence of an electron at nucleus B in the bonding and also in the antibonding orbitals is to be calculated.
Concept introduction:
Refer to part (a).
(b)

Answer to Problem 9B.2P
The probability of the presence of an electron at nucleus B in the bonding orbital is
Explanation of Solution
It is given that a small-electron probe having volume
The value of R is
The value of
The value of
The expression that is used represent probability of finding an electron is given below.
Where,
The distance between A and B is
Figure 1
The value of
Substitute the values of
Substitute the values of
Therefore, the probability of the presence of an electron at nucleus B in the bonding orbital is
(c)
Interpretation:
The probability of the presence of an electron at half way between A and B in the bonding and also in the antibonding orbitals is to be calculated.
Concept introduction:
Refer to part (a).
(c)

Answer to Problem 9B.2P
The probability of the presence of an electron at half way between A and B in the bonding orbital is
Explanation of Solution
It is given that a small-electron probe having volume
The value of R is
The value of
The value of
The expression that is used represent probability of finding an electron is given below.
Where,
The distance between A and B is
Figure 1
The value of
Substitute the values of
Substitute the values of
Therefore, the probability of the presence of an electron at half way between A and B in the bonding orbital is
(d)
Interpretation:
The probability of the presence of an electron at a point
Concept introduction:
Refer to part (a).
(d)

Answer to Problem 9B.2P
The probability of the presence of an electron at a point
Explanation of Solution
It is given that a small-electron probe having volume
The value of R is
The value of
The value of
The expression that is used represent probability of finding an electron is given below.
Where,
The distance between A and B is
Figure 1
The value of
Substitute the values of
Substitute the values of
Therefore, the probability of the presence of an electron at a point
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Chapter 9 Solutions
ATKINS' PHYSICAL CHEMISTRY
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