Question
What is the sum of the oxidation numbers of all the atoms in each of the following polyatomic ions? (a) $\mathrm{OH}^{-}$(b) $\mathrm{NH}_{4}^{+} ;$ (c) $\mathrm{SO}_{4}^{2-} ;$ (d) $\mathrm{PO}_{4}^{3-}$
Step 1
In other words, it's the charge that the atom would have if all the shared electrons were assigned to the atom with the greater electronegativity. Show more…
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