[{"from": "human", "value": "What can you tell me about this molecule? [Br-1].[Ra]"}, {"from": "gpt", "value": "The molecule is a chemical compound of radium and bromine. It is used in separating radium from uranium ore. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (L625, L662)"}]