An ionic bond is formed when a metal atom transfers one or more electrons to other atom.
Na ---> Na (positive) + e (Negative)
F + e -----> F (Negative)
The Oppsitely charged ions get attraction through electrostatic force of attraction to form an ionic Bond.
If the electronegativity difference between the atoms is equal to or greater than 1.7 the bond forms between the atoms have more than 50 % ionic character.
- In the solid each cation surrounds itself with anions and each anion with cations. In this way a very large number of ions are arranged in an ordinary network called ionic crystals.
- They are good conductors of electricity in fused state or aqueous solution.
- They are soluble in polar solvents and insoluble in non-polar solvents.
- Have high melting point and boiling point.
- Have strong force of attraction between cation and anion (Columbic force).
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