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D and F Block Elements question

2020 · 5 Sep · Shift 1 · Q8
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  5. /2020 · 5 Sep · Shift 1 · Q8

D and F Block Elements question

2020 · 5 Sep · Shift 1 · Q8

JEE MainChemistryD and F Block ElementsMCQ+4 / −1
The correct electronic configuration and spin-only magnetic moment (BM) of Gd3+Gd^{3+}Gd3+ (Z = 64), respectively, are :
  1. A
    [Xe]5f7[Xe]5f_7[Xe]5f7​ and 8.9
  2. B
    [Xe]4f7[Xe]4f_7[Xe]4f7​ and 7.9
  3. C
    [Xe]5f7[Xe]5f_7[Xe]5f7​ and 7.9
  4. D
    [Xe]4f7[Xe]4f_7[Xe]4f7​ and 8.9
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