What are the conditions for the formation of an electrovalent bond?
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Conditions -
(i) The atom which changes into the cation (+ ive ion) should have 1, 2 or 3 valency electrons. The other atom which changes into the anion (-ve ion) should have 5, 6 or 7 electrons in the valency shell.
(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.
(iii) There must be overall decrease in energy which means that the energy must be released. For this purpose an atom should have low value of Ionisation potential and the other atom should have high value of electron affinity.
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Conditions -
(i) The atom which changes into the cation (+ ive ion) should have 1, 2 or 3 valency electrons. The other atom which changes into the anion (-ve ion) should have 5, 6 or 7 electrons in the valency shell.
(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.
(iii) There must be overall decrease in energy which means that the energy must be released. For this purpose an atom should have low value of Ionisation potential and the other atom should have high value of electron affinity.
HOPE IT HELPS
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