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The number of d-electrons in Fe^(2+)(Z=...

The number of d-electrons in `Fe^(2+)`(Z=26) is not equal to the number of electrons in which one of the following ?

A

pi - electronis in CI(Z=17)

B

d-electrons in Fe(Z=26)

C

p-electrons in Ne (Z=10)

D

s-electrons in Mg (Z=12)

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The correct Answer is:
A
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