10 points! Which species has the largest radius
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10 points! Which species has the largest radius

[From: ] [author: ] [Date: 11-12-07] [Hit: ]
ptable.com/ and read up on the elements you asked about,......
F-, O2-, N3-, Na+, Mg2+

I think it is N3-. Is that correct?

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Yes, when dealing with isoelectronic ions, the ion with the fewest number of protons will have the largest ionic radius. In this case it is N -3

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It is Na+, trust me
atomic radius decreases across and increases down the periodic table
The atoms on the right on the periodic table have a higher nuclear pull on its electrons making it smaller, regardless of the # of electrons
Don the periodic table more shells are added, adding more repulsion between them.
therefor it is Na+

also use this link http://www.ptable.com/ and read up on the elements you asked about, you will see that Na has the largest radius

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N-3
1
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