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Standard XII
Chemistry
Question
In the third excited state the number of unpaired electrons in chlorine atom is:
5
7
3
1
A
5
B
7
C
3
D
1
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Solution
Verified by Toppr
The general electronic configuration of chlorine is
[
N
e
]
3
s
2
3
p
5
When electrons are excited in chlorine, the electrons enter into 3d subshell then electronic configuration of chlorine is given as:
[
N
e
]
3
s
1
3
p
3
3
d
3
Thus the number of unpaired electrons will be 7.
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