dipole

[methlover]

The greatest dipole moment is likely to be found in a bond where one bonding element has high electronegativity and the other has low electronegativity.

Could someone explain to me why the greatest dipole moment has to have one element with high electronegativity and the other with low?

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[dwc929]

The greatest dipole moment is likely to be found in a bond where one bonding element has high electronegativity and the other has low electronegativity.

Could someone explain to me why the greatest dipole moment has to have one element with high electronegativity and the other with low?

EN means highest pull on electrons. So large differences in EN mean electrons are more concentrated towards one side = dipole moment