Which of the following sets of ions represents a collection of isoelectronic species?

N^{3}, O^{3}, F^{-}, S^{2 -}

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L i^{+}, N a^{+}, M g^{2 +}, C a^{2 +}

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

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B a^{2 +}, S r^{2 +}, K^{+}, C a^{2 +}

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Solution

The correct option is C $K^{+}, C l^{-}, C a^{2 +}, S c^{3 +}$
Isoelectronic species: A series of atom,ions and molecules in which each species contains the same number of electrons but different nuclear charge.
Each of $K^{+}, {C l}^{-}, {C a}^{2 +}, {S c}^{3 +}$ contains 18 electrons

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Similar questions

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

Which of the following sets contain only isoelectronic ions?
(i) $Z n^{2 +}, C a^{2 +}, G a^{3 +}, A l^{3 +}$

(ii) $K^{+}, C a^{2 +}, S c^{3 +}, C l^{-}$

(iii) $P^{3 -}, S^{2 -}, C l^{-}, K^{+}$

(iv) $T i^{4 +}, A r, C r^{3 +}, v^{5 +}$

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

Which of the following are isoelectronic species i.e., those having the same number of electrons?

Na⁺, K⁺, Mg²⁺, Ca²⁺, S^2–, Ar

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

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