define an electrovalent bond .What are the necessary conditions for the formation of ionic bond?
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Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.
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(i) The atom which changes into the cation (+ ive ion) should have 1, 2 or 3 valency electrons. ... (ii) A high difference of electro negativity (about 2) of the two atoms is necessary for the formation of an electrovalent bond. The Electrovalent bond is not possible between the similar atoms.
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