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Why does the free electron theory fail to predict the semiconducting properties of materials?
Wiki User
∙ 8y ago
Drawbacks of Classical free electron theory:
1. It is macroscopic theory
2. This theory cannot explain the electron conductivity of
semiconductors and insulators.
3. Ferromagnetism cannot be explained by this theory.
4. This theory cannot explain the Photoelectric effect, Compton
effect and the Black Body radiation.
5. The calculated value of specific heat of metals is not matching
with the experimental value.
6. At low temperature, Lorentz number is not a constant. But by
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classical theory it is a constant.
7. Dual nature cannot be explained.
8. Atomic fine spectra cannot be explained.
9. Classical theory states that all the free electrons will absorb
energy, but quantum theory states that only few electrons will
absorb energy
Wiki User
∙ 11y ago
Wiki User
∙ 8y agoThe free electron theory can't explain the difference between conductors, semiconductors and insulators.
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What is a tensile tester machine used for?
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true
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luck
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ha
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Comparing the properties of the new element with the properties of the other elements in the group we can make this prediction.
