Atomic Structure - Result Question 57

####33. The correct set of quantum numbers for the unpaired electron of chlorine atom is

(1989,1M)

n l m n l m
(a) 2 1 0 (b) 2 1 1
(c) 3 1 1 (d) 3 0 0
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Answer:

Correct Answer: 33. (c)

Solution:

  1. Cl(17)=1s22s22p63s23p5

The last, unpaired electron has, n=3,l=1(p) and m can have any of the three value (1,0,+1).



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