Arrange the following elements in the order of increasing atomic radius: Si, Al, Cl, Li
(a) Si < Al < Cl < Li.
(b) Cl < Si < Al < Li.
(c) Al < Si < Cl < Li.
(d) Li < Si < Cl < Al.
(e) Li < Si < Al < Cl
Answer: b) Cl < Si < Al < Li.
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