Dipole Moment in a Lewis Structure
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Dipole Moment in a Lewis Structure
Can someone explain why we draw an arrow to represent the dipole moment in a lewis structure? What does it tell us?
Re: Dipole Moment in a Lewis Structure
The arrow points to the delta negative pole in the molecule, the tail of the arrow indicates the delta positive pole of the molecule.
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Re: Dipole Moment in a Lewis Structure
With the arrow showing us the delta positive pole and delta negative pole, we can determine which atom in the molecule has a higher electronegativity than the other, and will pull the shared electrons closer when sharing.
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Re: Dipole Moment in a Lewis Structure
Is it just a matter of determining which atom has a higher electronegativity, and then drawing the dipole moment from there?
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Re: Dipole Moment in a Lewis Structure
The delta negative pole is the atom that is higher in electronegativity.
The delta positive pole is the atom that is lower in electronegativity.
For example in H2O, oxygen is more electronegative than hydrogen, so oxygen would be delta negative. The 2 hydrogens have a lower electronegativity, so they would be delta positive.
The delta positive pole is the atom that is lower in electronegativity.
For example in H2O, oxygen is more electronegative than hydrogen, so oxygen would be delta negative. The 2 hydrogens have a lower electronegativity, so they would be delta positive.
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