Atomic radii of alkali metals follow the order:

Question

Atomic radii of alkali metals follow the order:, $ \mathrm{Li}>\mathrm{Na}>\mathrm{K}>\mathrm{Cs} $, $ \mathrm{K}>\mathrm{Cs}>\mathrm{Li}>\mathrm{Na} $, $ \mathrm{Na}>\mathrm{K}>\mathrm{Cs}>\mathrm{Li} $, $ \mathrm{Cs}>\mathrm{K}>\mathrm{Na}>\mathrm{Li} $

MARKS App · Accepted Answer

Atomic radii of alkali metals increases from Li to Cs due to presence of an extra shell of electrons. Hence, order of atomic radii: Cs > K > Na > Li .

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