Archiu:Francium (Element - 87) 1.jpg
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Summary
| Description |
English: Francium (Fr) is # 87 on the Periodic Table of Elements. Thirty-seven isotopes of francium are known - all are radioactive. Francium-221 and francium-223 occur naturally in trace amounts as decay products from radioactive minerals.
The vial contains a uranium mineral, with francium present in minute quantities. Info. at: en.wikipedia.org/wiki/Francium and en.wikipedia.org/wiki/Isotopes_of_francium |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/54040272077/ |
| Author | James St. John |
Licensing
This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/54040272077. It was reviewed on 24 November 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Data/Hora | Miniatura | Dimensions | Usuari | Descripció | |
|---|---|---|---|---|---|
| actual | 11:02 24 nov 2024 | | 2917 × 2651 (4,52 MB) | wikimediacommons>Ser Amantio di Nicolao | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/54040272077/ with UploadWizard |
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