d and f BLOCK ELEMENTS MCQ Quiz: GKFix - Bridge of Knowledge

Question 1801

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What is the primary reason for the high enthalpy of atomisation in transition metals with many valence electrons?

Weaker interatomic forces
Stronger resultant bonding due to more valence electrons
Lower boiling points
Decreased stability

Question 1802

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Based on the text's discussion of melting points and electron involvement, which configuration would theoretically lead to the strongest metallic bonding in a transition metal?

A configuration with a completely empty d subshell.
A configuration with a completely filled d subshell.
A configuration with a half-filled d subshell contributing optimally to bonding.
A configuration with only s electrons involved.

Question 1803

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What can be inferred about the general packing efficiency of the listed transition metal structures (bcc, hcp, ccp)?

They are inefficient and loosely packed.
They only include simple cubic packing.
They represent efficient ways to pack atoms in a solid, maximizing space utilization.
Packing efficiency is irrelevant to their properties.

Question 1804

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Why is 'metallic lustre' considered a direct consequence of the electronic structure of transition metals?

Their atoms are arranged in neat rows.
They are always polished.
They contain only s electrons.
The delocalized electrons can absorb and re-emit a wide range of light frequencies.

Question 1805

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Which element explicitly listed in the table adopts only a body-centred cubic (bcc) structure?

Iron
Titanium
Vanadium
Chromium

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