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  4. Reactivity of transition elements decreases almost regularly from Sc to Cu because of

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Q. Reactivity of transition elements decreases almost regularly from $Sc$ to $Cu$ because of

The d-and f-Block Elements

Solution:

Reactivity $\propto \frac{1}{\text { I.E }}$
Since Ionisation enthalpy increases from $Sc$ to $Cu$, reactivity decreases from $Sc$ to $Cu$