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thorium
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thorium
Encyclopedia
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核燃料
释
thorium
钍
天然放射性元素。元素符号Th，原子序数90，原子量232.0381，锕系放射性元素。
理学
放射性元素
释
thorium
钍
天然放射性元素，元素符号Th，原子序数90，原子量232.0377。属周期系ⅢB族，锕系元素。以北欧神话中的雷神托尔（Thor）命名。
Physics
thorium
钍
90
Th
｛化｝
Astronomy
thorium
缩写：Th。钍
Chemistry
＞放射化学与辐射化学＞放射性元素化学＞释义
thorium
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