1.

In a multi -electron atom, which of the following orbitals described by three quantum numbers will have the same energy in the absence of magnetic field ? (i) n = 1, I =0, m =0(ii) n = 2, I = 0 , m = 0 (iii) n = 1, I = 1, m =1(iv) n = 3, I = 2, m = 1 (v) n = 3, I=2, m = 0

Answer»

(I) and (II)
(II) and (III)
(III) and (IV)
(IV) and (V)

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