The element that forms oxide with highest oxidation state

Options

A. Sc
B. V
C. Mn
D. Fe

Answer

To determine the element that forms an oxide with the highest oxidation state among the given options (Scandium, Vanadium, Manganese, and Iron), we will analyze the oxidation states of each element and identify the maximum oxidation state they can achieve.

### Step-by-Step Solution:

1. **Identify the Electronic Configurations:**
- **Scandium (Sc):** The electronic configuration is [Ar] 4s² 3d¹. The highest oxidation state is +3.
- **Vanadium (V):** The electronic configuration is [Ar] 4s² 3d³. The possible oxidation states are +2, +3, +4, and +5.
- **Manganese (Mn):** The electronic configuration is [Ar] 4s² 3d⁵. The possible oxidation states are +2, +3, +4, +5, +6, and +7.
- **Iron (Fe):** The electronic configuration is [Ar] 4s² 3d⁶. The possible oxidation states are +2 and +3.

2. **Determine the Maximum Oxidation States:**
- **Scandium:** Maximum oxidation state = +3
- **Vanadium:** Maximum oxidation state = +5
- **Manganese:** Maximum oxidation state = +7
- **Iron:** Maximum oxidation state = +3

3. **Identify the Highest Oxidation State:**
- Among the maximum oxidation states identified, Manganese has the highest oxidation state of +7.

4. **Identify the Oxide Formed:**
- Manganese forms the oxide Mn₂O₇, where manganese is in the +7 oxidation state.

5. **Conclusion:**
- Therefore, the element that forms an oxide with the highest oxidation state is **Manganese (Mn)**.

### Final Answer:
**Manganese (Mn) forms the oxide with the highest oxidation state (+7).**

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