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Question
Chemistry
The correct order of the decreasing ionic radii among the following isoelectronic species is
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Q. The correct order of the decreasing ionic radii among the following isoelectronic species is
A
$Ca ^{2+} > K^{+} > S^{2-} > C l^{-}$
30%
B
$Cl ^{-} > S ^{2-} > Ca ^{2+} > K^{+}$
14%
C
$S^{2-} > C l^{-} > K^{+} > C a^{2+}$
42%
D
$K ^{+} > Ca ^{2+} > Cl ^{-} > S^{2-}$
14%
Solution:
Ionii radious $\alpha$ change on Anion
$\alpha \frac{1}{\text { charge on Ation }}$