Partial charges will exist on each atom when a bond exists between two atoms with different electronegativities. Since the atom with a higher electronegativity will have a stronger ability to attract electrons, it will have a partial charge. The atom with a lower electronegativity will have an equal and opposite charge. As the difference in electronegativity increases, the resulting magnitudes of the partial charges will .

negative, positive, increase

Explanation:

From the given question,  

During the formation of bond, between two atoms with difference between their electronegativity-

The more electronegative atom, will pull the electrons towards itself , and hence acquires a partial negative charge,

And,

The less electronegative atom, will acquire a partial positive charge.The more the difference between the electronegativity of the atoms, the more would be the magnitude of partial charge.And, the less would be the difference between the electronegativity of the atoms, the lesser would be the magnitude of partial charge.

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