MCQ
The element with which of the following outer electron configuration may exhibit the largest number of oxidation states in its compounds
- ✓$3d ^5\,4s^2$
- B$3d ^8\,4s^2$
- C$3d ^7\,4s^2$
- D$3d ^6\,4s^2$
✓
Answer
Correct option: A.
$3d ^5\,4s^2$
a
The element with outer electron configuration $3d^5\, 4s^2$ is $Mn$ which exhibits oxidation states from $+ 2$ to $+ 7$
The element with outer electron configuration $3d^5\, 4s^2$ is $Mn$ which exhibits oxidation states from $+ 2$ to $+ 7$
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