Published by:
CGP EDU Academic Team
Published on: August 11, 2026
In the series 
to 
which element has least enthalpy of atomisation?
Text Solution
Verified by ExpertsThe correct answer is:
A
In general, greater the number of unpaired electrons, greater is the number of bond and
therefore, greater is the strength of these bonds, thus higher will be enthalpy of atomisation. Hence, among the given metal, Zn has least enthalpy of atomisation due to the absence of unpaired electrons.
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