The Solid State

Short Answer Type

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What are non-stoichiometric compounds?

Non-stoichiometric compounds are chemical compounds, almost always solid inorganic compounds, having elemental composition whose proportions cannot be represented by integers; most often, in such materials, some small percentage of atoms are missing or too many atoms are packed into an otherwise perfect lattice work. exaple FeO, ZnO etc.
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    What causes the conduction of electricity by semi-conductors?
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