The metal that shows highest and maximum number of oxidation states is:

Question

Canvas Classes · Accepted Answer

Concept: Variable Oxidation States

| Element | Config | Oxidation States | Count |
|---------|--------|------------------|-------|
| Fe (Z=26) | [Ar]  | +2, +3, +4, +6 | 4 |
| Mn (Z=25) | [Ar]  | +2, +3, +4, +5, +6, +7 | 6 |
| Co (Z=27) | [Ar]  | +2, +3 | 2 |
| Ti (Z=22) | [Ar]  | +2, +3, +4 | 3 |

Mn has 7 electrons available () for bonding, giving it the widest range of oxidation states (+2 to +7). The highest oxidation state (+7) is seen in .

Answer: Option (2) — Mn

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