Metal halides
![](/Images/godic/202501/17/NaCl_polyhedra0544.png")
![](/Images/godic/202501/17/Uranium-hexafluoride-unit-cell-3D-balls0544.png")
![Silver nitrate solution added to a chloride solution precipitates silver chloride instantly](/Images/godic/202501/17/AgCl-neerslag0544.jpg")
![Antimony pentafluoride is the prototypical Lewis acid for the Gutmann scale.](/Images/godic/202501/17/Antimony-pentafluoride-2D0545.png")
Metal halides are compounds between metals and halogens. Some, such as sodium chloride are ionic, while others are covalently bonded. Covalently bonded metal halides may be discrete molecules, such as uranium hexafluoride, or they may form polymeric structures, such as palladium chloride.