Hey guys. When i was studying the molecular orbital diagram for HF, it was said to me that 1s od hydrogen CANNOT overlap with 2py or 2px of fluorine due to the assymetry of these two orbitals, so it overlaps exclusively with 2pz. (And cannot overlap with 2s of fluorine becouse of large energy difference). This was said several times, and even in general for overlaping of orbitals. And it makes sense. But in orbital hybridisation theory, s orbital overlaps with all three p orbitals. How can that be? Why H didn't overlap with other 2p orbitals then? Thanks!