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Question

Question 18

Out of the following pairs of electrons, identify the pairs of electrons present in degenerate orbitals.

(a) (i) n=3,l=2,ml=2,ms=12 (ii) n=3,l=2,ml=1,ms=12

(b) (i) n=3,l=1,ml=1,ms=+12 (ii) n=3,l=2,ml=1,ms=+12

(c) (i) n=4,l=1,ml=1,ms=+12 (ii) n=3,l=2,ml=1,ms=+12

(d) (i) n=3,l=2,ml=+2,ms=12 (ii) n=3,l=2,ml=+2,ms=+12

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Solution

Answers: (a) and (d).

Degenerate orbitals means the orbitals of the same subshell of the same main shell, i.e., their n and l value.

(a) (i) 3dxy (ii) 3dyz

(b) (i) 3px (ii) 3dxy

(c) (i) 4s (ii) 3dxy

(d) (i) 3dx2y2 (ii) 3dx2y2

Thus, 3dxy and 3dyz ; 3dx2y2 represent pair of degenerate orbitals.


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