From the arrangement in the periodic table, the increasing order of the atomic radius is Chlorine < Sulfur < Aluminum.
The periodic table has been the arrangement of the elements with increasing atomic numbers and similarities. The elements comprising of the same valence electrons are arranged in the same group.
In the periodic table, on moving down the group there has been the atomic size has been increased with the increase in the shell on each period. The increase in the electrons in the same shell results in the increase in the attraction force and thus, the atomic size decreases across the period.
From the arrangement in the periodic table, the increasing order of the atomic radius is Chlorine < Sulfur < Aluminum.
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