Lesson eLearning

Which of the following elements is an f‑block element of the periodic table?

easy MCQ 2 marks Class 12 · Chemistry · d- and f-Block Elements
  1. A) Palladium
  2. B) Terbium
  3. C) Iron
  4. D) Zinc
Answer
B) Terbium

The correct answer is B) Terbium — Conclude that only Terbium is an f‑block element.

Step-by-step solution

  1. Identify the atomic number of each element: Palladium (Z=46) lies in the d‑block, Terbium (Z=65) lies in the f‑block, Iron (Z=26) is in the d‑block, Zinc (Z=30) is in the d‑block.
  2. Conclude that only Terbium is an f‑block element.
Common mistake: Confusing d‑block with f‑block elements having similar atomic numbers

Concept tested: Identification of f‑block elements

Published · How this solution was prepared and checked

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