Which of the following species are isoelectronic-i Neii O 2-iii Mg 2-iv F- v Al 3- vi Cl - vii K viii Na -A- Ne- O 2- Mg 2- Al 3-B- Cl - O 2- F - Al 3-C- Al 3- Cl - Mg 2- O 2-D- Na - Mg 2- Cl - Ne

The correct option is A Ne, O^2 , Mg^2+, Al^3+Ne, O^2 , Mg^2+ andAl^3+have nbsp;10 electrons each and nbsp;are isoelectronic species. ...

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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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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

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

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) $N^{3 -}, C l^{-}$

O^{2 -}, F^{-}, N a^{+}, M g^{2 +} and A l^{3 +}

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