Answer:
Explanation:
Electronegativity is defined as the ability of an element to attract electrons that link it to another element.
The covalent bond (chemical bond between atoms where electrons are shared, forming a molecule. This bond is established between non-metallic elements) between two atoms can be polar or nonpolar.
When two atoms have different electronegativities, the one with the highest electronegativity will attract the electrons towards each other, generating a separation between the positive and negative charges. In this way a polar bond is produced, the polarity of which will be as the electronegativity difference between the bonded atoms is greater.
In this case you know the following electronegativities:
So the electronegativity differences in the HI and HCl compounds are:
- HF =4.0 - 2.1= 1.9
- HI = 2.5 - 2.1= 0.4
Both compounds have element H that is part of it, only differing in F and I. Since F has greater electronegativity than I, the difference in electronegativity in compound HF will be greater. Then the HF compound will be more polar.
