In the series Sc (Z = 21) to Zn (Z = 30),the | vedclass

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(D) The enthalpy of atomization depends on the strength of metallic bonding. In the $3d$ series,$Zn$ has a completely filled $d$-orbital $(3d^{10} 4s^

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$Zn$

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(D) The enthalpy of atomization depends on the strength of metallic bonding. In the $3d$ series,$Zn$ has a completely filled $d$-orbital $(3d^{10} 4s^2)$,which results in the absence of unpaired electrons for metallic bonding. Consequently,$Zn$ exhibits the weakest metallic bonding,leading to the lowest enthalpy of atomization in the series.

In the series $Sc (Z = 21)$ to $Zn (Z = 30)$,the enthalpy of atomization of . . . . . . is the lowest.

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