Chemistry-Transition Elements
NEET Chemistry Transition Elements MCQ Question
Type: MCQ-diagram based-Hard-Class 12
Consider a diagram showing the electronic configurations of several transition elements in their +2 oxidation state. Which of the following configurations corresponds to manganese in this state?
A
[Ar] 3d5 4s0
B
[Ar] 3d4 4s1
C
[Ar] 3d3 4s2
D
[Ar] 3d6 4s0
Correct Answer
Option A
Detailed Explanation
In the +2 oxidation state, manganese loses two electrons from its 4s and 3d orbitals, resulting in the configuration [Ar] 3d5 4s0, which is related to its half-filled d sub-shell stability.
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