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Enthalpy of atomization of zn is lowest in 3d series ??

Enthalpy of atomization of zn is lowest in 3d series ??

Grade:12

1 Answers

Arun
25750 Points
6 years ago
Dear Shubham
 
 
Sc & zn belongs to 3rd group pf periodic table. The extent of metallic bonding an element undergoes decides the enthalpy of atomization. The more extensive the metallic bonding of an element, the more will be its enthalpy of atomization. In all transition metals (except Zn, electronic configuration: 3d10 4s2), there are some unpaired electrons that account for their stronger metallic bonding. Due to the absence of these unpaired electrons, the inter-atomic electronic bonding is the weakest in Zn and as a result, it has the least enthalpy of atomization.
 
 
Regards
Arun (askIITians forum expert)

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