Question

Why enthulpy of atomisation increses from scandium to zinc?

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.

Hope this helps.

Answer 2

: Zinc (4d10 5s2) has completely filled d-orbital and has no unpaired electron to take part in the formation of metallic bonds. ... As a result, the metallic bonding in zinc is weakest and it has least enthalpy of atomisation..
Hope this is helpful to you..
Mark as brainlist