This was a question on the quiz, and I put that the answer is because the EN difference between H and F (1. is higher than 1.6; the rule is an EN difference larger than 1.6 is considered ionic, so that's why it can be considered an ionic bond. However, hydrogen and fluorine are both non metals, which is why it is polar covalent.

Is this correct?
[attachment id=0 msg=3540]

Quote from: ann on November 27, 2022, 07:01:04 PM
This was a question on the quiz, and I put that the answer is because the EN difference between H and F (1. is higher than 1.6; the rule is an EN difference larger than 1.6 is considered ionic, so that's why it can be considered an ionic bond. However, hydrogen and fluorine are both non metals, which is why it is polar covalent.

Is this correct?

HF is a polar covalent bond because H and F are non metals here so sharing electrons.
However when you add HF in water it breaks into H+ ion which is more like alkali metal like behaviour