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Järn
JärnLadda ner Chemistry-applikationen för att se mer information om det kemiska elementet:
| Atomnummer | 26 |
| Periodiska systemets grupper | VIIIB |
| Periodiska systemets perioder | 4 |
| Massa | 55.845 |
| Latinskt namn | Ferrum |
| Elektronkonfiguration | [Ar]3d6 4s2 |
| Oxidationstillstånd | -4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7 |