identify the largest and smallest species from O2-, F-, Na+, and Mg2+
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identify the largest and smallest species from O2-, F-, Na+, and Mg2+
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Answer:
Mg +2 largest and O- small
Make it easier by first sorting them into Periodic Table order: O2-, F-, Na+ and Mg2. These are all isoelectronic with the structure 2,8. The smallest ion will be the one with the largest number of protons – Al3+; the biggest, the one with the least protons – N3-.