Easy MCQ +4 / -1

Lanthanides are characterised by the filling of:

  1. A 4f orbitals Correct answer
  2. B 5f orbitals
  3. C 6s orbitals
  4. D 5d orbitals

Solution

Lanthanides (Z=57-71) involve progressive filling of 4f orbitals. Actinides (Z=89-103) involve 5f orbitals.

About this question

Subject: Chemistry · Chapter: d and f Block Elements · Topic: Lanthanides and Actinides

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