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Q.

Which of the following set of quantum numbers is correct for the 19th electron of chromium

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a

n -   3           l -  2             m -   -2       s - ½     

b

n - 4             l -  1             m -    -1      s -  ½    

c

n -    3          l -  0             m - 0         s - ½     

d

n -  4            l - 0              m - 0         s -   ½   

answer is C.

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Detailed Solution

19th electron of chromium is 4s1n=4,l=0,m=0,s=+12

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