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The number of unpaired electrons in ""(2...

The number of unpaired electrons in `""_(27)Co` is

A

2

B

3

C

4

D

5

Text Solution

Verified by Experts

The correct Answer is:
B
The electronic configuration of `""_(27)Co` is `[Ar]3d^(7)4s^(2)`. Thus, it contains 3 umpaired electrons in 3d orbitals
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