Oxidation states
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| Symbol | Oxidation states |
|---|---|
| Al | 3+ |
| O S | 2- |
| Ag | 1+ |
| P | 3-, 3+, 5+ |
| N | 3- |
| Hg Cu | 1+, 2+ |
| Mn Fe Cr Co | 2+, 3+ |
| Pb Sn | 2+, 4+ |
| Au In Tl | 1+, 3+ |
| Zn Cd | 2+ |
| Bi As Sb | 3+, 5+ |