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单词 radioactive metal
释义
radioactive metal
In an alphabetical list of the chemical elements, which radioactive metal comes first?
Times, Sunday Times
A soft, silvery-white radioactive metal, actinium reacts rapidly with oxygen and moisture in air forming a white coating of actinium oxide that prevents further oxidation.
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Hydrocarbons are by far the most common source of fuel used by humans, but other substances, including radioactive metals, are also utilized.
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As a result, their breathe-gas explodes on contact with even trace amounts of radioactive metals, such as uranium.
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更新时间:2025/2/3 7:19:51