Question

Why transition metals have high enthalpy of atomisation?

Answer 1

Enthalpy of atomisation: Enthalpy of atomisation is the change in enthalpy when one mole of bonds are completely broken to obtain atoms in the gas phase.

Transition elements have high effective nuclear charge and a large number of valence electrons. Therefore, they form very strong metallic bonds. As a result, the enthalpy of atomization of transition metals is high.

Answer 2

Answer:

Transition elements have high effective nuclear charge and a large number of valence electrons. Therefore, they form very strong metallic bonds which results in high enthalpies of atomisation.