The electrons will not be shared equally. They're going to be closer to the fluorine. So if we examine the molecular orbital of this bond, we see that the one s orbital combines overlaps with the SP three orbital of the fluorine forming this hybridized or this molecular orbital. And the electrons found in this molecular orbital will be closer to the fluorine nucleus than the h nucleus. And once again, that's why we have a partial negative on the fluorine and a partial positive on the h.
So recall that Bronsted larry acids are compounds that donate an h ion. So, for example, this hydrofluoric acid is a Bronxed larry acid because it has an H that it can donate.