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Question

Four quantum numbers of unpaired electron of chlorine are :
  1. n=3,l=2,m=0,s=+1/2
  2. n=3,l=1,m=0,s=+1/2
  3. n=3,l=1,m=+1,s=0
  4. n=3,l=0,m=1,s=+1/2

A
n=3,l=2,m=0,s=+1/2
B
n=3,l=1,m=0,s=+1/2
C
n=3,l=1,m=+1,s=0
D
n=3,l=0,m=1,s=+1/2
Solution
Verified by Toppr

The electronic configuration of chlorine is 1s22s22p63s23p5.
The unpaired electron of Cl belongs to 3p orbital.
For a p orbital, l=1 and m=1,0or+1.
Four quantum numbers of unpaired electron of chlorine are n=3,l=1,m=0,s=+1/2.

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