How many of the following contains either half-filled or full filled "f-subshell" (inner/valency shell) in their ground state electronic configuration?
Pm, Eu, Gd, Ho, Yb, Lu, U, Cm, No, and Lr

Question

How many of the following contains either half-filled or full filled "f-subshell" (inner/valency shell) in their ground state electronic configuration? Pm, Eu, Gd, Ho, Yb, Lu, U, Cm, No, and Lr

TestHub · Accepted Answer

Question Explanation:

Find the number of elements with half-filled or fully filled f-subshells.

Concept:

This question is based on electronic configuration and stability.

Solution:

The final answer is $8$ .

Chemistry - f-block Question with Solution | TestHub

Doubts & Discussion

JEE Advanced (2028)