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词汇 francium
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francium n.

radioactive element, 1946, named by French physicist Marguerite Catherine Perey (1909-1975) who first identified it at the Curie Institute in Paris, from Latinized form of France. With metallic element ending -ium.

updated on June 11, 2015

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更新时间:2025/5/1 19:59:44