Polarity: Difference between revisions
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Polarity is the unbalanced distribution of charge in a [[Molecule|molecule]]. It results in the [[molecule|molecule]] having a [[negative charge|negatively charged]] and [[positive charge|positively charged]] end. For something to be polar it must contain a polar bond, a bonds polarity is determined by the electronegativity of the two atoms in the bond. Electrons are more attracted to the more electronegative [[atom|atom]]. With respect to the [[Pauling scale|Pauling scale]] a polar bond is when the difference in electronegativity is between 0.5 and 2. | |||
=== Water === | |||
[[Water|Water]] is a polar molecule, the electronegativity of [[oxygen|oxygen]] is greater than the electronegativity of [[hydrogen|hydrogen]] therefore the two oxygen-hydrogen bonds are polar as the electrons in the bond are more attracted to the oxygen nuclei than the hydrogen nuclei. | |||
Latest revision as of 18:29, 4 December 2018
Polarity is the unbalanced distribution of charge in a molecule. It results in the molecule having a negatively charged and positively charged end. For something to be polar it must contain a polar bond, a bonds polarity is determined by the electronegativity of the two atoms in the bond. Electrons are more attracted to the more electronegative atom. With respect to the Pauling scale a polar bond is when the difference in electronegativity is between 0.5 and 2.
Water
Water is a polar molecule, the electronegativity of oxygen is greater than the electronegativity of hydrogen therefore the two oxygen-hydrogen bonds are polar as the electrons in the bond are more attracted to the oxygen nuclei than the hydrogen nuclei.