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Byju's Answer
Standard XII
Chemistry
Electronic Configuration and Oxidation States
Which of the ...
Question
Which of the following is electronic configuration of
C
u
2
+
(
Z
=
29
)
?
A
[
A
r
]
4
S
1
3
d
8
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B
[
A
r
]
4
s
2
3
d
10
4
p
1
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C
[
A
r
]
4
s
1
3
d
10
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D
[
A
r
]
3
d
9
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Solution
The correct option is
D
[
A
r
]
3
d
9
C
u
(
Z
=
29
)
:
[
A
r
]
4
s
1
3
d
10
C
u
2
+
(
Z
=
27
)
:
[
A
r
]
3
d
9
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Similar questions
Q.
Why Cu has the ground state electronic configuration as
[
A
r
]
4
s
1
3
d
10
instead of having
[
A
r
]
4
s
2
3
d
9
?
Q.
Compared to
C
u
2
+
having
3
d
9
configuration,
C
u
+
having
3
d
10
configration
Q.
The electronic configuration of
C
u
(
I
I
)
is
3
d
9
whereas that of
C
u
(
I
)
is
3
d
10
. Which of the following is correct?
Q.
Write the electronic configuration of
C
u
2
+
ion.
[
C
u
=
29
]
Q.
Assertion :
The ground state electron configuration orbitals of elemental
C
u
is
[
A
r
]
4
s
1
3
d
10
Reason:
Completely half-filled and filled d orbital best show special electronic stabilization
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