Question

The formal charges on 02 atomi
o atoms I and 11
crespectively un given structure is
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:
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Answer 1

Answer:

mineral may be divided into two parts: (1) the structural unit, an array of high-bond-valence polyhedra that is usually anionic in character, and (2) the interstitial complex, an array of large low-valence cations, simple anions, (OH) and (H 2 O) groups that is usually cationic in character. The chemical compositions of interstitial complexes in sulfate minerals are explained and predicted using intrinsic properties such as polarity, Lewis acidity, coordination numbers and the average charge of oxygen atoms in the structural unit (average basicity). The interstitial complex can be characterized by its Lewis acidity, a measure of the electrophilic character of the complex, and the structural unit can be characterized by its range in Lewis basicity. Any complex structural unit [M z+ (H 2 O) n (OH) m (SO 4) k ] can be divided into an acidic component of (M z+ n) polyhedra and a basic component of (SO 4) groups. T