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放射性元素
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bohrium
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人工放射性元素,元素符号Bh,原子序数107,半衰期最长的同位素的质量数270。属周期系ⅦB族。为纪念丹麦物理学家N.玻尔[注]而命名的。曾被称为107号元素(unnilseptium),符号Uns。
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