Question

6. Among the following species N3-, 02-, F-, Na* ,Mg2+ and AB+ (i) what is common in them? Explain with electronic configuration. (ii) With proper explanation arrange the above species in the order of increasing ionic radius?

Answer 1

Answer:

Among the following species N3-, 02-, F-, Na* ,Mg2+ and AB+ (i) what is common in them? Explain with electronic configuration. (ii) With proper explanation arrange the above species in the order of increasing ionic radius? =

Explanation:

All the given species contain same number of electrons (10). Hence, they are isoelectronic species. With increase in the nuclear charge, the ionic size decreases.

(b) The increasing order of ionic radii is Al

3+

<Mg

2+

<Na

+

<F

−

<O

2−

<N

3−

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