The transition element that has lowest enthalpy of atomisation, is :
Fe
V
Cu
Zn
Enthalpies of atomisation -
Enthalpies of transition elements increase down the group and there as left to right with exceptiion, Mn, Tc etc.
-
Zn is not a transition element so transition element having lowest atomisation energy out of is
.
Fe
Option 2)V
Option 3)Cu
Option 4)Zn
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since Zn is not transition element (refer NCERT) Cu is the correct answer