Back to d & f- BLOCK ELEMENTS

JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Medium

1 of 1

Understanding +4 | -1

Which of the following is the correct electronic configuration of Gadolonium.

View answer and explanation

Correct option: A

\left[ {Xe} \right]4{f^7}5{d^1}6{s^2}

Option A (

{Xe} 4{f^7}5{d^1}6{s^2}

) is correct because Gadolinium (Gd) has an electronic configuration that favors a half-filled 4f subshell for stability.

More Questions from d & f- BLOCK ELEMENTS

Practice All Chapter MCQs →

Mercury is transported in metal containers made of: Cadmipone is a mixture of: The number of element from the following that do not belong to lanthanoids is :
Eu, Cm, Er, Tb, Yb and Lu Statement-I:

{Sm}^{3+}

{Dy}^{3+}

have same colour (yellow).

Statement-II: Both ions are having same number of unpaired electrons. The most common oxidation state of Lanthanoid
elements is +3. Which of the following is likely to
also form other oxidation state? A mixture of

\mathrm{Ti}{\mathrm{O}_2}

\mathrm{BaS}{\mathrm{O}_4}