Radium iodide is an inorganic compound of radium and iodine with the chemical formula . It is the radium salt of hydrogen iodide, consisting of radium cations and iodide anions .
Synthesis The salt is synthesized by the reaction of radium carbonate with hydroiodic acid:
Properties Radium iodide crystalises in the orthorhombic system with space group Pmcn. The unit cell has a = 9.22 b = 10.93 and c = 5.42 Å with 4 formulas per unit cell.
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