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Question

Which of the following set has the strongest tendency to form anions


A

Ga, In and Te

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B

Na, Mg and Al

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C

N, O and F

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D

V, Cr and Mn

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Solution

The correct option is C

N, O and F


What's common in the series of elements in which they are given?

They are from the same group or same period. Firstly, we will check out their groups.

Ga, In, Te Group 13

Na, Mg, Al 3rd period

N, O, F 2nd period V,

Cr, Mn 4th period

We know that,

Electron gain enthalpy α Effective nuclear charge

Check out atomic radius for all series of elements. From these series, we can say that

N, O, and F are smallest

Therefore, N, O, and F have the strongest tendency to form anions.


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