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← ScienceWhich phenomenon causes silicon dioxide (SiO2) to be an effective electrical insulator in microchips?
A)Hybridization of silicon and oxygen orbitals✓
B)Delocalization of electrons within the lattice
C)Formation of metallic bonds between atoms
D)Alignment of electric dipoles induced by fields
💡 Explanation
When silicon and oxygen bond, sp3 orbital hybridization creates strong covalent bonds, resulting in a large energy gap between the valence and conduction bands hindering electron mobility and charge flow. Therefore insulation results, rather than conduction or polarization effects which need different molecular structures.
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