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Question

Which of the following species are isoelectronic?

i) Ne ii) O2 iii) Mg2+ iv) F

v) Al3+ vi) Cl vii) K viii) Na

A
Ne, O2, Mg2+, Al3+
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B
Cl, O2, F, Al3+
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C
Al3+, Cl, Mg2+, O2
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D
Na, Mg2+, Cl, Ne
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Solution

The correct option is A Ne, O2, Mg2+, Al3+
Ne, O2, Mg2+~and Al3+have 10 electrons each and are isoelectronic species.

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