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Compared with the alkaline earth metals,...

Compared with the alkaline earth metals, the alkali metals exhibit

A

smaller ionic radii

B

higher boiling points

C

greater hardness

D

lower ionisation energies

Text Solution

Verified by Experts

The correct Answer is:
D
Alkali metals have the lowest ionisation enthalpy in each period because alkali metals are largest in their respective periods and therefore, the valency electrons are loosely held by the nucleus.
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