Question
Write a not about oxidation state of 3d series.
✓
Answer
- The number of oxidation states increases with the number of electrons available, and it decreases as the number of paired electrons increases.
- Hence, the first and last elements show less number of oxidation states and the middle elements with more number of oxidation states.
- For example, the first element Sc has only one oxidation state +3, the middle element Mn has six different oxidation states from +2 to +7. The last element Cu shows +1 and +2 oxidation states only.
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