Question

which of the following hydrogen halides has the highest percentage of ionic character.
HCl
HBr
HF
HI

Answer 1

HF has highest ionoc character

Answer 2

Answer:

HF

Explanation:

Due the low the lowest size of Fluorine in the periodic table, the electronegativitu( the ability to attract the shared pair(covalent bonded pair)) increases. Due to which the partial charge on hydrogen(+) is greater and the partial charge(-) on Flourine increases. Thus the ionic character (which is caused due to opposite charges) increases. And the bond length(due to electrostatic attraction) decreases.