Briefly give the basis for pauling's scale of electronegativity.

1.	Briefly give the basis for pauling's scale of electronegativity.
Answer» Solution :The electro negativity increases across a period from left to right SINCE the atomic radius decreases in a period , the ATTRACTION between the valence ELECTRON and the nucleus increases Hence the tendency to attract shared pair of electrons increases VARIATION of electro negativity along I period Variation of electro negativity in a GROUP : The electro negativity decreases down a group As we move down a group ,the atomic radius increases and the nuclear attractive force on the valence electron decreases `(SUR_CHE_XI_V01_C03_E01_050_S02.png" width="80%">

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