Identify the correct order of the size of the following:

1.	Identify the correct order of the size of the following:
Answer» `CA^(2+) lt K^(+) lt Ar lt S^(2-) lt CL^(-)` `Ca^(2+) lt K^(+) lt Ar lt Cl^(-) lt S^(2-)` `Ar lt Ca^(+) lt K^(+) lt Cl^(-) lt S^(2-)` `Ca^(2+) lt Ar lt K^(+) lt Cl^(-) lt S^(2-)` Solution :`Ca^(2+) lt K^(+) lt Ar lt Cl^(-) lt S^(2-)` In isoelectronic species radius DECREASES on increasing EFFECTIVE nuclear CHARGE.

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