Which of the following pair is not isoelectronic
1)Na+ and Na
2)Al3+ and B3+
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Al3+and B3+ is not isoelectronic...
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Answer:
2) Al3+ and B3+
Explanation:
this is because isoelectronic pairs are those which have equal no. of electrons whether anion or cation. And the no. of electrons in B3+ are 2 while Al3+ have 10 electrons.
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