A dipole moment exists where there is a difference in electronegativity between atoms in molecules. The direction of the dipole moment is from less electronegative atom to more electronegative atom.
The true statements are as follows;
- Element Y carries a partial negative charge.
- Element Y is more electronegative than element X
- Element X carries a partial positive charge
Molecules that have a dipole moment has a partial positive end and a partial negative end.
The arrows indicating dipole moment conventionally points from the positive end of the dipole to the negative end of the dipole in molecules.
The element to which the arrow points is always the more electronegative element while the atom from which the arrow emanates is the less electronegative element.
In summary, we can write the following;
- Element Y carries a partial negative charge.
- Element Y is more electronegative than element X
- Element X carries a partial positive charge
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