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Number of electrons having l + m value equal to zero in 26 Fe may be (A) 13 (B) 14 (C) 7 (D) 12



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


        (A)    13


        (B)    14


        (C)    7


        (D)    12


Grade:upto college level

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
7 years ago

(AB)

 

Sol.   26Fe – 1s2, 2s2 2p6, 3s2 2p6, 3d6, 4s2

 

         + m = 0          P       = 0, m = 0      i.e.            s-subshell

                                         = 1, m = –1     i.e.            one orbital of p

                                         = 2, m = 2      i.e.            one of d-orbitals

 

        hence there are 13 and 14 electron as in d-orbital it may be one or two electron having m = –2.

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