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How does electronegativity affect polarity?

Answer 1

Well #"polarity"# is the degree of charge separation...

On the other hand, electronegativity quantifies an atom's capacity to polarize electron density in the direction of itself within a chemical bond.

Consequently, the more polar the bond formed between the two elements, the GREATER the difference in electronegativities.

We look at say #H-F#, and #H-Cl#, we gots Pauling electronegativities of #H=2.20#; #F=3.98#; #Cl=3.16#....

Because #Delta_"electronegativity"(H-F)">>"Delta_"electronegativity"(H-Cl)#..we would say that the #H-F# bond is more polar, more charge separated, that the #H-Cl# bond..

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Answer 2

Lucy Alessi

Electronegativity affects polarity by determining the unequal sharing of electrons in a covalent bond. When atoms with different electronegativities form a bond, the more electronegative atom attracts the shared electrons more strongly, resulting in a partial negative charge on that atom and a partial positive charge on the less electronegative atom. This creates a dipole moment, leading to a polar covalent bond.

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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.