Write different oxidation states of iron.

Explanation

To answer the question about the different oxidation states of iron, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Electron Configuration of Iron**:
- Iron (Fe) has the atomic number 26. Its electron configuration is [Ar] 4s² 3d⁶. This means it has 2 electrons in the 4s subshell and 6 electrons in the 3d subshell.

2. **Identify the Possible Oxidation States**:
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