MCQ
Which among the following elements do not have any electron in f$-$sub shell either in expected or in observed state electronic configuration?
  • A
    $Eu ( Z =63)$
  • B
    $Lu ( Z =71)$
  • C
    $Nd ( Z =60)$
  • $La ( Z =57)$

Answer

Correct option: D.
$La ( Z =57)$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free