Question

Arrange in increasing order of size: Na⁺, Mg²⁺, Al³⁺, F⁻, O²⁻, C⁴⁻. Given reason.

Answer 1

according to the periodic table of elements

Answer 2

For Na

+

,Mg

2+

,F

−

and O

2−

the correct order of increasing ionic radii is :

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Video Explanation

Solution to Question ID 868158

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Answer

Correct option is

B

Mg

2+

<Na

+

<F

−

<O

2−

All the species are iso-electronic (10e

−

)

For iso-electronic species more the positive change, smaller the ionic radii.

For iso-electronic species more negative change, bigger the ionic radii

Hence the order is Mg

2+

<Na

+

<F

−

<O

2−