Category:Actinium
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Media in category "Actinium"
The following 4 files are in this category, out of 4 total.
- Actinium.jpg 400 × 400; 64 KB
- Actinium periodic table.png 800 × 240; 47 KB
- Actinium sample.jpg 240 × 180; 40 KB
- Electron shell actinium.png 558 × 600; 101 KB