
File:Radon86(1).jpg · Wikimedia Commons · See Wikimedia Commons
Radon is a naturally occurring radioactive gas that is colorless and odorless, making it impossible to detect without special equipment. It is released from soil and rock into the environment and poses a health concern because of its radioactivity, which is why monitoring radon levels in homes and buildings matters.
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ラドン(英: radon [ˈreɪdɒn]、独: Radon [ˈraːdon, raˈdoːn])は、原子番号86の元素。元素記号は Rn。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).