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Which of the ...

Question

Which of the following species are isoelectronic?

$i) N e i i) O^{2 -} i i i) M g^{2 +} i v) F$

$v) A l^{3 +} v i) C l^{-} v i i) K v i i i) N a$

N e, O^{2 -}, M g^{2 +}, A l^{3 +}

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C l^{-}, O^{2 -}, F, A l^{3 +}

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A l^{3 +}, C l^{-}, M g^{2 +}, O^{2 -}

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N a, M g^{2 +}, C l^{-}, N e

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Solution

The correct option is A $N e, O^{2 -}, M g^{2 +}, A l^{3 +}$
$N e, O^{2 -}, M g^{2 +}$ ~and $A l^{3 +}$ have 10 electrons each and are isoelectronic species.

Suggest Corrections

Similar questions

i) N e i i) O^{2 -} i i i) M g^{2 +} i v) F

v) A l^{3 +} v i) C l^{-} v i i) K v i i i) N a

O^{2 -}, F^{-}, N a^{+}, M g^{2 +}

N a^{+}, M g^{+}, A l^{3 +}, F^{-}

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

Question 20

In which of the following pairs, the ions are isoelectronic ?

(a) $N a^{+}, M g^{2 +}$ (b) $A l^{3 +}, O^{-}$ (c) $N a^{+}, O^{2 -}$ (d) $N^{3 -}, C l^{-}$

Which of the following represent the correct Element and Symbol Pair?

(i) Cobalt –CO

(ii) Copper-Cu

(iii)Potassium- K

(iv) Calcium-C

(v) Silicon-Sl

(vi) Silver- Ag

(vii)Barium-Ba

(viii)Iron-Ir

I

A l > S i > P > C l

I I

B e < M g < C a < S r

I I I

I < B r < C l < F

I V

{N a}^{+} < {M g}^{2 +} < {A l}^{3 +} < {S i}^{4 +}

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