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Please help! - Co-ordination Compounds - JEE Main-2

The number of unpaired electrons in the complex ion [CoF_6]^{3-}is (Atomic no. of Co=27)

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  • Option 2)

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V Vakul

As we have learned

Magnetic Moments (spin only) -

\sqrt{n\left ( n+2 \right )} where n= number of unpaired electron.

- wherein

Number of unpaired e^{-} s and corresponding magnetic moments

1\rightarrow 1.7\\2\rightarrow 2.8\\3\rightarrow 3.9\\4\rightarrow 4.9\\5\rightarrow 5.9

 

 The number of unpaired electrons in the Complex ion [CoF_{6}]^{3-} is 4.

 

 

 


Option 1)

0

Option 2)

2

Option 3)

3

Option 4)

4

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