A comparison of the properties of covalent and ionic compounds is presented below: Covalent compounds are formed by the mutual sharing electrons whereas ionic compounds are formed a complete transfer of elements.
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An ionic (or electrovalent) bond is formed between two ions of opposite charges. During the formation of an ionic bond, one of the reacting elements should form a positively charged ion (cation), and the other should give a negatively charged ion (anion).
Some important characteristics of ionic (or electrovalent) compounds are :- Ionic (or electrovalent) compounds have relatively high density. In ionic compounds, the ions are closely packed. This decreases the volume of the system, and as a result density is high.
When there is a transfer of electrons from one atom to another either by gain or loss of electrons an ionic or electrovalent bond is formed. An ionic bond is a bond between ions with opposite charges.
For ionic compound, such as, sodium chloride, there is no discrete individual molecule. Instead, these are the aggregates represented by a formula of the type..