Arrange the following ions in increasing order of their radius:

M n^{+ 7} < V^{+ 5} < C a^{+ 2} < K^{+} C l^{-} < S^{2} < P^{3 -}

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M n^{+ 7} < C a^{+ 2} < V^{+ 5} < K^{+} C l^{-} < S^{2} < P^{3 -}

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M n^{+ 7} < V^{+ 5} < C a^{+ 2} < K^{+} C l^{-} < P^{3 -} < S^{2}

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V^{+ 5} < M n^{+ 7} < C a^{+ 2} < K^{+} C l^{-} < S^{2} < P^{3 -}

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Solution

The correct option is A $M n^{+ 7} < V^{+ 5} < C a^{+ 2} < K^{+} C l^{-} < S^{2} < P^{3 -}$
The increasing order of the ionic radius is $M n^{+ 7} < V^{+ 5} < C a^{+ 2} < K^{+} C l^{-} < S^{2} < P^{3 -}$ . As the effective nuclear charge increases, the attraction of the nucleus for the valence electrons increases and hence the ionic radii decreases.

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Similar questions

Calculate the valency factor of the following:
(i) Ca $\to$ ${C a}^{2 +}$ + 2 $e^{-}$
(ii)K $\to$ $K^{+}$ + $e^{-}$
(iii) ${M n}^{7 +}$ + 5 $e^{-}$ $\to$ ${M n}^{2 +}$

Q. The correct order of ionic radii for the ions,

P^{3 -}, S^{2 -}, C a^{2 +}, K^{+}, C l^{-}

Q. The species

S^{2 -}, K^{+}, C a^{2 +}, C l^{-}

contain the same number of electrons.
The increasing order of their radii is:

Calculate the valency factor of the following:
(i) Ca $\to$ ${C a}^{2 +}$ + 2 $e^{-}$
(ii)K $\to$ $K^{+}$ + $e^{-}$
(iii) ${M n}^{7 +}$ + 5 $e^{-}$ $\to$ ${M n}^{2 +}$

Q. In the ions

P^{3 -}, S^{2 -}

and

C l^{-}

the increasing order of size is:

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Arrange the following ions in increasing order of their radius:

The correct option is A Mn+7<V+5<Ca+2<K+Cl−<S2<P3−The increasing order of the ionic radius is Mn+7<V+5<Ca+2<K+Cl−<S2<P3−. As the effective nuclear charge increases, the attraction of the nucleus for the valence electrons increases and hence the ionic radii decreases.