Ionic Bond is formed when the electronegativity difference is 0.4 > 2.0. Electronegativity is a term that can be defined as a tendency of an atom to attract electron towards its own self.
Explanation:
Electronegativity is a term that can be defined as a tendency of an atom to attract electron towards its own self.
An electronegativity of an atom is affected by
1. In case the electronegativity difference (which is denoted by ΔEN) is less than 0.5 then the bond formed is known as Nonpolar covalent.
2. In case the ΔEN is in between 0.5 and 1.6, the bond formed is referred to as the Polar covalent
3. In case the ΔEN is more /greater than 2.0, then the bond formed is referred to as Ionic Bond
2 Examples of Ionic bonds