what is covalent character in ionic bonds
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A covalent bond that has a partial ionic character to it, as a result of the difference in electronegativity between the two bonding atoms. A measure of the tendency of an atom to attract electrons to itself. The partial sharing of electrons between atoms that have an ionic bond.
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The partial covalent character in ionic compounds can be explained on the basis a polarisation. In an ionic compound, there is an electrostatic attractive force between the cation and anion. The positively charged cation attracts the valence electrons of anion while repelling the nucleus. This causes a distortion in the electron cloud of the anion and its electron density drifts towards the cation, which results in some sharing of the valence electrons between these ions. us, a partial covalent character is developed between them. This phenomenon is called polarisation.
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