d and f BLOCK ELEMENTS

Among the 3d transition series, which element typically shows a maximum melting point close to its d⁵ configuration?

• Manganese
• Iron
• Chromium
• Vanadium

What type of bonding is primarily responsible for the high tensile strength observed in most transition metals?

• Ionic bonding
• Covalent bonding
• Hydrogen bonding
• Metallic bonding involving d-electrons

Which of the following transition metals does NOT typically adopt a body-centred cubic (bcc) structure at normal temperatures?

• Iron
• Chromium
• Scandium
• Copper

Why is silver (Ag) considered a transition element despite having a completely filled d subshell in its ground state?

• It has a completely filled p subshell.
• It lacks d electrons entirely.
• It can exhibit variable oxidation states and form compounds involving d-orbital participation.
• It is a noble gas.

Which property of transition elements is generally high, as indicated by the maxima observed around the middle of each series in Figure 4.2?

• Ionic radii
• Electronegativity
• Enthalpies of atomisation
• Atomic volume