What do polar covalent bonds result from?

1 Answer
Jacob T.
Jun 16, 2017

The difference between electronegativity of the binding atoms.

Explanation:

(Refer to the periodical table element with electronegativity value)
Consider a bond to be non-polar if this difference is smaller than 0.4 (or 0.2~0.5 in certain cases )
Also, bonds are no longer considered "covalent" if the difference is greater than 2.0, as electron "transfer" occurs.

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