Radium fluoride is an inorganic compound with a chemical formula of . This salt, like all radium compounds, is highly radioactive. It can be coprecipitated with lanthanide fluorides.[1] Radium fluoride has the same crystal form as calcium fluoride (fluorite). However, calculations suggest that radium fluoride vapor consists of RaF2 molecules, with a bond angle of 118°, due to substantial covalent interaction within the molecule.[2]
Radium fluoride can be produced by the reaction of radium metal and hydrogen fluoride gas: