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Question

Chemistry Question on trends in periodic table

The correct order of the atomic radii of C,Cs,AlC, Cs, Al and SS is :

A

S<C<Al<CsS < C < Al < Cs

B

S<C<Cs<AlS < C < Cs < Al

C

C<S<Cs<AlC < S < Cs < Al

D

C<S<Al<CsC < S < Al < Cs

Answer

C<S<Al<CsC < S < Al < Cs

Explanation

Solution

Atomic radii order : C < S < Al < Cs
Atomic radius of C : 170 pm
Atomic radius of S : 180 pm
Atomic radius of Al : 184 pm
Atomic radius of Cs : 300 pm