极性 Chemical polarity

（重定向自Bond polarity）

在化学中，极性指一根共价键或一个共价分子中电荷分布的不均匀性。如果电荷分布得不均匀，则称该键或分子为极性；如果均匀，则称为非极性。

物质的一些物理性质（如溶解性、熔沸点等）与分子的极性相关。

单词	Bond polarity
释义	Bond polarity 中文百科极性 Chemical polarity （重定向自Bond polarity）在化学中，极性指一根共价键或一个共价分子中电荷分布的不均匀性。如果电荷分布得不均匀，则称该键或分子为极性；如果均匀，则称为非极性。物质的一些物理性质（如溶解性、熔沸点等）与分子的极性相关。英语百科 Chemical polarity 极性（重定向自Bond polarity） In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multipole moment. Polar molecules interact through dipole–dipole intermolecular forces and hydrogen bonds. Molecular polarity is dependent on the difference in electronegativity between atoms in a compound and the asymmetry of the compound's structure. Polarity underlies a number of physical properties including surface tension, solubility, and melting and boiling points.
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Bond polarity