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Cæsium
CæsiumDownload Chemistry-applikationen for at se flere oplysninger om det kemiske element:
| Atomnummer | 55 |
| Gruppe | IA |
| Periode | 6 |
| Vægt | 132.90546 |
| Latinsk navn | Caesium |
| Elektronkonfiguration | [Xe]6s |
| Oxidationstilstand | -1, 0, 1 |