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  • If a trivalent atom replaces a few silicon atoms in a three-dimensional network of silicon dioxide, what would be the type of charge on an overall structure?

If a trivalent atom replaces a few silicon atoms in a three-dimensional network of silicon dioxide, what would be the type of charge on an overall structure?

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The Si atoms are in 3-dimensional structure in SiO­_{2}, and the tetrahedral atoms are responsible for this. These atoms are replaced by trivalent atoms, and the valence electron is freely available, and thus there is one negative charge in the structure. This makes the entire compound negatively charged.

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