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Byju's Answer
Standard XII
Chemistry
Bond Pairs and Lone Pairs
Number of unp...
Question
Number of unpaired electrons in
O
2
[
A
s
F
4
]
is :
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Solution
Most stable oxidation state of As is +3.
O
2
[
A
s
F
4
]
can be divided as
O
+
2
and
[
A
s
F
4
]
−
. Now we will find number of unpaired electrons in
O
+
2
i.e., equal to 1 as we can see below with th help of its electronic configuration:
(
σ
1
s
)
2
<
(
σ
∗
1
s
)
2
<
(
σ
2
s
)
2
<
(
σ
∗
2
s
)
2
<
(
σ
2
p
z
)
2
<
(
Π
2
p
x
)
2
=
(
Π
2
p
y
)
2
<
(
Π
∗
2
p
x
)
1
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