ThespeciesAr, K^(+) and Ca^(2+) containthe samenumberof electronic. In whichorder totheirradiiincrease.

ThespeciesAr, K^(+) and Ca^(2+) containthe samenumberof electronic. In

1.	ThespeciesAr, K^(+) and Ca^(2+) containthe samenumberof electronic. In whichorder totheirradiiincrease.
Answer» `CA^(2+) , LT K^(+) lt Ar` `K^(+) , lt Ar lt Ca^(2+)` `Ar lt K^(+)lt Ca^(2+)` `Ca^(2+)lt Ar lt K^(+)` Solution :Amongstisoelectronicspecieshigherthe + vechargesmalleris the radiius whileneutralspecies has THELARGEST radius . Thusradii INCREASE in THEORDER : `C^(2+)lt K^(+)lt Ar . ` i.e.,option (a) iscorrect .