Question

How do you count the vlanece electrons for for
[Fe(CO)_{4}]^{2-}?

I cannot figure out how to get 16 or 18 using the donor pair
method or the netural ligand method. For some reason I cannot
figure out electron counting, depsite watching videos. In the
exmplaes it all makes sense, until I try to do one on my own.

Anyways, using the donor pair method, the COs would contribute
2e^{-} each, so 8e^{-} total. Then iron would be in
the -2 oxidation state beccause of the -2 charge, which puts us at
12e^{-}, then subtract 2e^{-} for the oxidation
state, which puts us at 10e^{-}, which I know is not
right.

Answer #1

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