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Question

Chemistry Question on Classification of elements & periodicity in properties

The correct increasing order of the ionic radii is

A

Ca2+<K+<Cl−<S2−Ca ^{2+}< K ^{+}< Cl ^{-}< S ^{2-}

B

S2−<Cl−<Ca2+<K+S ^{2-}< Cl ^{-}< Ca ^{2+}< K ^{+}

C

K+<S2−<Ca2+<Cl−K ^{+}< S ^{2-}< Ca ^{2+}< Cl ^{-}

D

Cl−<Ca2+<K+<S2−Cl ^{-}< Ca ^{2+}< K ^{+}< S ^{2-}

Answer

Ca2+<K+<Cl−<S2−Ca ^{2+}< K ^{+}< Cl ^{-}< S ^{2-}

Explanation

Solution

In isoelectronic species size ∝Z1​