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

Question 1846

▼

What does the term 'ductility' mean when describing transition metals?

▼

Which property of transition metals is directly linked to their ability to conduct electricity efficiently?

▼

How does the presence of unpaired d electrons generally influence the enthalpy of atomisation according to the text's description of Fig. 4.2?

Completely paired d electrons result in maximum atomisation enthalpy.
Having no d electrons results in maximum atomisation enthalpy.
A specific arrangement with one unpaired electron per d orbital contributes to a maximum in atomisation enthalpy.
Only elements with empty d orbitals have high atomisation enthalpies.

▼

Which of the following 5d transition metals is listed as adopting a cubic close-packed (ccp) structure?

▼

What is the likely reason for the anomalous melting point of Manganese (Mn) compared to the general trend?

Manganese has a completely filled d orbital.
Manganese has fewer electrons than the d⁵ element.
Its specific electronic configuration and bonding characteristics lead to weaker interatomic forces than expected.
Manganese is a gas at normal temperatures.