Q.

The correct set of four quantum numbers for the valence electron of strontium atom (Z = 38) is

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a

4,0,0,+12

b

5,1,0,−12

c

5,2,1,+12

d

5,0,0,+12

answer is D.

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Detailed Solution

Sr (Z=38):[Kr]5s2For 5s electron : n=5,l=0,m=0,s=+12 or −12
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