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溴（xiù）（英語：Bromine），是一種化學元素，化學符號为Br，原子序數为35，是一種鹵素。溴分子在标准状况下是有揮發性的紅棕色液體，活性介於氯與碘之間。纯溴也称溴素。溴蒸氣具有腐蝕性，并且有...