why are only silicon and germanium considered as semiconductors?
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- Each has four valence electrons, but germanium will at a given temperature have more free electrons and a higher conductivity.
- Silicon is by far the more widely used semiconductor for electronics, partly because it can be used at much higher temperatures than germanium.
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As silicon and germanium are metalloids and metalloids show the properties of both metals and non metals they are considered as semi conductors
Metals are good conductors
Non metals are bad conductors
Metalloids are semi conductors
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