Question

Which statement is incorrect for the d-block elements?

• A. They have atomic radii larger than s and p-block elements.
• B. They have high melting points, boiling points and tensile strength.
• C. They have variable oxidation states.
• D. They exhibit catalytic process.

Answer 1

Answer: (A)

They have atomic radii larger than s and p-block elements.

d-block elements experience higher z-effective due to poor shielding effect of d electrons. Due to higher z-effective, their size contracts. Thus, d-block elements have smaller atomic radii. Also d-block elements are metals and their metallic radii is smaller.