JEE MAIN - Chemistry (2021 - 27th August Evening Shift - No. 5)
The correct order of ionic radii for the ions, P3$$-$$, S2$$-$$, Ca2+, K+, Cl$$-$$ is :
P3$$-$$ > S2$$-$$ > Cl$$-$$ > K+ > Ca2+
Cl$$-$$ > S2$$-$$ > P3$$-$$ > Ca2+ > K+
P3$$-$$ > S2$$-$$ > Cl$$-$$ > Ca2+ > K+
K+ > Ca2+ > P3$$-$$ > S2$$-$$ > Cl$$-$$
Explanation
P3$$-$$ > S2$$-$$ > Cl$$-$$ > K+ > Ca2+ (Correct order of ionic radii)
all the given species are isoelectronic species. In isoelectronic species size increases with increase of negative charge and size decreases with increase in positive charge.
all the given species are isoelectronic species. In isoelectronic species size increases with increase of negative charge and size decreases with increase in positive charge.
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