Ammonium bromide is an ionic compound consisting of positively charged ammonium ions (NH4+) and negatively charged bromide ions (Br-). The bond between ammonium and bromide ions is an ionic bond, which is a chemical bond formed by the electrostatic attraction between oppositely charged ions.

Apart from the ionic bonds between ammonium and bromide ions, there are no additional types of chemical bonds present in ammonium bromide. The molecule as a whole is held together by the strong electrostatic forces between the positively and negatively charged ions, forming a stable ionic crystal structure.