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Definition and Synonyms for ラドン
| 1. |
ラドン |
ラジウムの崩壊で形成された放射性ガスの要素 |
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Rn |
a radioactive gaseous element formed by the disintegration of radium |
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Synonyms: |
ラドン |
| 2. |
ラドン |
不活性気体の中で最も重い |
|
Rn |
the heaviest of the inert gasses |
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Synonyms: |
ラドン |
| 3. |
ラドン |
自然に起こって（特に花崗岩の上の地域で）、健康への危険と考えられる |
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Rn |
occurs naturally (especially in areas over granite) and is considered a hazard to health |
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Synonyms: |
ラドン |
Categories ラドン is a member of
| 1. |
化学元素 |
それ以上単純な物質には分離できず、単独であるいは結合してあらゆる物を構成する、100を超える知られている物質（うち92は自然界に存在する） |
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Chemical Element |
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter |
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| 2. |
|
周期表のヘリウム・グループの化学的に不活性ガス状成分の総称 |
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Noble Gas |
any of the chemically inert gaseous elements of the helium group in the periodic table |
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