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Arrange the following as stated: Increas...

Arrange the following as stated: Increasing order of ionic size
`N^(3-),Na^(oplus),F^(ɵ),O^(2-),Mg^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
`Mg^(2+) lt Na lt F^(ɵ) lt O^(2-) lt N^(3-)`
The increasing order of ionic sizes is
`Mg^(2+) lt Na lt F^(ɵ) lt O^(2-) lt N^(3-)`
All of these are isoelectronic ions.
In isoelectronic species, as the number of protons (atomic number) goes on increasing, size goes on decreasing due to stronger attraction on the electrons.
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