For the formation of covalent bond, the different in the value of electronegativities should be

In the formation of covalent bond

Formation of covalent bonds in compound exhibits

Write the formation of sigma covalent bond diagrammatically.

Discuss the feasibility of the formation of an ionic bond if both the atoms are of equal electronegativities.

In covalent bond formation

For the formation of ionic bond between two atoms, the electronegativity difference between them should be greater than or equal to