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bromine
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化学元素,元素符号Br,原子序数35,原子量79.904,属第四周期系ⅦA(或17)族,卤素。
Astronomy
全称:bromine。缩写:Br
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Chemistry
>无机化学>无机化学基本概念与无机化合物>释义
bromine
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