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Aktinium
AktiniumLadda ner Chemistry-applikationen för att se mer information om det kemiska elementet:
| Atomnummer | 89 |
| Periodiska systemets grupper | IIIB |
| Periodiska systemets perioder | 7 |
| Massa | 227 |
| Latinskt namn | Actinium |
| Elektronkonfiguration | [Rn]6d7s2 |
| Oxidationstillstånd | 0, 2, 3 |