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Valence Bond Theory

Number of unp...

Question

Number of unpaired electrons in $F e^{+ + +} (Z = 26)$ is:

A

4

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B

5

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C

6

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D

3

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Solution

The correct option is A 5
$F e (Z = 26) = [A r] 3 d^{6} 4 s^{2}$
$F e^{+ + +} (Z = 26) = [A r] 3 d^{5}$
so it have 5 unpaired electron.

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