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| Term | Definition |
|---|---|
| tin | Sn +2 +4 |
| lead | Pb +2 +4 |
| cobalt | Co +2 +3 |
| iron | Fe +2 +3 |
| chromium | Cr +2 +3 |
| mercury | Hg +1 +2 |
| copper | Cu +1 +2 |
| manganese | Mn +2 +3 |