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Francium
FranciumDownload Chemistry-applikationen for at se flere oplysninger om det kemiske element:
| Atomnummer | 87 |
| Gruppe | IA |
| Periode | 7 |
| Vægt | 223 |
| Latinsk navn | Francium |
| Elektronkonfiguration | [Rn]7s |
| Oxidationstilstand | 0, 1 |