Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
polar

Tthe polarity of a molecule is due to the difference in electronegativity (ability to attract electrons during a chemical combination) between the elements it is composed of and their distribution in space. The more electrical charges are distributed in an asymmetrical manner, the more the molecule is said to be polar. Conversely, if the charges are perfectly symmetrical and cancel each other out, they are said to be apolar.

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