1. Tardigrade
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  3. Chemistry
  4. Consider the ions Eu(III), Gd(III), Sm(III) and Lu(III). The observed calculated magnetic moment values are closest for the pair -

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Q. Consider the ions $Eu(III), Gd(III), Sm(III)$ and $Lu(III)$. The observed & calculated magnetic moment values are closest for the pair -

The d-and f-Block Elements

Solution:

The electronic configuration of $Gd^{3+}$ and $Lu^{3+}$ are $Af^7$ and $4f^{14}$ for this ions, total angular momentum is zero i.e., there is no orbital contribution. Therefore, calculated and observed values of magnetic moment are closest for this pair