Which element among 3d series exhibit highest oxidation state ?

Explanation

To determine which element among the 3d series exhibits the highest oxidation state, we need to analyze the oxidation states of the elements in the series from scandium (Sc) to zinc (Zn).

### Step-by-Step Solution:

1. **Identify the 3d Series Elements**: The 3d series includes the following elements:
- Scandium (Sc)
- Titanium (Ti)
- Vanadium (V)
...