Question

1. what happens when the difference in electronegativity between atoms is less than 1.7?
2. what is the electronegativity difference that results in a polar covalent bond?

Explanation:

When the electronegativity difference between atoms is less than 1.7, a covalent bond forms. For a polar covalent bond, the electronegativity difference is between 0.5 and 1.7.

Answer:

1. A covalent bond forms.
2. Between 0.5 and 1.7.