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What is the definition of electronegativity?

Answer 1

The tendency of an atom in a molecule to attract the shared pair of electrons towards itself is called its electronegativity

Since electronegativity is merely a tendency, indicating the net effect of various elements' tendencies to attract the electron pair that forms the bond, it is a dimensionless property.

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Answer 2

Cooper Adams

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It is usually measured on the Pauling scale, with fluorine being the most electronegative element with a value of 3.98.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.