Cesium (Element # 55) : 無料・フリー素材/写真
Cesium (Element # 55) / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Cesium (Cs) is # 55 on the Periodic Table of Elements. Elemental cesium is a pale golden metal that's solid or liquid at Earth surface conditions (its melting point is about 83° Fahrenheit). Cesium occurs in few minerals, but a significant example is pollucite (Cs(Si2Al)O6·nH2O, hydrous cesium aluminosilicate).Forty isotopes of cesium are known - two occur naturally. Almost all Cs is cesium-133. Cesium-135 is radioactive and occurs in trace amounts only-----------------------------Info. at:en.wikipedia.org/wiki/Cesiumanden.wikipedia.org/wiki/Isotopes_of_cesiumandwww.flickr.com/photos/jsjgeology/42778116584 |
| 撮影日 | 2024-09-28 12:38:43 |
| 撮影者 | James St. John |
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