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Question
The correct set of quantum numbers for the unpaired electron of chlorine atom (Z=17) is:
Options:
A .  n = 2, l = 1, m = 0
B .  n = 2, l = 1, m = 1
C .  n = 3, l = 1, m = 1
D .  n = 3, l = 0, m = 0
Answer: Option C
:
C
atomic number of Cl=17 , electronic configuration = 1s22s22p63s23p5For 3p orbital n=3, l=1 m=-1,0,+1

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