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What is electronegativity ?

The tendency of an electron to attract bond pair electron towards itself is known as electronegativity. This tendency generates a polarity in molecule causes polar molecule. Example: H2O, HCl, KCl

Electronegativity trend:
F>Cl >Br>I


It is measured by Pauling scale.


What happen if two atoms of equal electronegativity bonded:

If two atoms of equal electronegativity bonded with each other then covalent bond is formed between these two atoms. Because equal electron are shared by two atoms.



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