The correct electronic configuration and spin-only magnetic moment (BM) of Gd3+ (Z = 64), respectively, are :

Question

The correct electronic configuration and spin-only
magnetic moment (BM) of Gd³⁺ (Z = 64), respectively, are :

[Xe]5f⁷ and 8.9

[Xe]4f⁷ and 7.9

[Xe]5f⁷ and 7.9

[Xe]4f⁷ and 8.9

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