Atomic Structure Question 495

Question: Number of electrons having +m value equal to zero in 26Fe may be

Options:

A) 13

B) 20

C) 7

D) 12

Show Answer

Answer:

Correct Answer: A

Solution:

  • 26Fe1s2,2s22p6,3s23p6,3d6,4s2 +m=0
    =0,,m=0 i.e. s-subshell =1,m=1 i.e. one orbital of p. =2,m=2 i.e. one of d-orbital’s

Hence there are 13 of 14 electrons as in d-orbital it may be one or two electron having m=2



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