In a simple \(\ce{H_2}\) molecule, the single electron in each atom becomes attracted to the nucleus of the other atom in the molecule as the atoms come closer together. In a molecule of \(\ce{HF}\), ...In a simple \(\ce{H_2}\) molecule, the single electron in each atom becomes attracted to the nucleus of the other atom in the molecule as the atoms come closer together. In a molecule of \(\ce{HF}\), the \(1s\) orbital of the hydrogen atom overlaps with the \(2p\) orbital of the \(2p\) orbital of the fluorine atom (see figure below).
