resonance of hydrogen carbonate ion
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Answer:
· Resonance structures are a set of two or more Lewis ... Like ozone, the electronic structure of the carbonate ion
Answer:
During our review of valence bond theory we alluded to the fact that discrepencies between theory and experimental fact require modification or even replacement of the theory. The inability of valence bond theory to account for the fact that dioxygen is paramagnetic prompted our discussion of molecular orbital theory . Now we'll consider another situation in which valence bond theory comes up short- compounds for which more it is possible to draw more than one valid Lewis structure. It's important at the outset to understand that we are not talking about isomers. Rather, the alternative formulations consist of an invariant atomic framework which is held together by s bonds. One structure differs from the next by the way in which p and/or non-bonding electrons are distributed over that atomic framework. We'll examine an inorganic compound, sodium carbonate, Na2CO3, first.
Sodium Carbonate
Figure 1 shows one of three valid Lewis structures for this simple compound. In this structure every atom has a filled valence shell, two of the oxygen atoms have a formal charge of -1, and a sodium ion is associated with each of the negatively charged oxygen atoms.