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Why does the free electron theory fail to predict the semiconducting properties of materials?
Drawbacks of Classical free electron theory:1. It is macroscopic theory2. This theory cannot explain the electron conductivity ofsemiconductors and insulators.3. Ferromagnetism cannot be explained by this theory.4. This theory cannot explain the Photoelectric effect, Comptoneffect and the Black Body radiation.5. The calculated value of specific heat of metals is not matchingwith the experimental value.6. At low temperature, Lorentz number is not a constant. But by12classical 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 absorbenergy, but quantum theory states that only few electrons willabsorb energy
How are materials divided into conductors insulators and semi conductors according to the atomic theory?
by their ability to accept electrons
Why are some conductors better than others?
well because the particle theory, the conduction makes the conductors have small particles or big so the big ones move faster so they are conductors and the small ones are the insulators
What is quantum free electron theory of metal?
Classical free electron theory could not explain many physical properties. In 1928, Sommerfeld developed a new theory applying quantum mechanical concepts and Fermi-Dirac statistics to the free electrons in the metal. This theory is called quantum free electron theory.
What does the electron sea model of metallic bonds help you to explain?
Properties of metals as high boiling point, high melting point, malleability, ductility, electrical conductivity, thermal conductivity, lustre are explained by the theory of metallic bonds.
Free-electron theory of metals is used for?
write note on free electron theory
What is meant by electronic theory?
Electronic theory is the theory of the behavior of the electron under various conditions including a free electron, a bound electron in either an outer or inner orbit of the atom.
How do you explain Classical Conditioning Theory?
Explain Classical Conditioning Theory?
How do you explain the theory of use and disuse?
Explain the theory of use and disuse
What must a theory continue to explain to be accurate?
To be accurate, a theory must continue to explain what
What To be accurate a theory must continue to explain .?
To be accurate, a theory must continue to explain what
Is there a unified theory explaining all correlated electron systems?
There is no single unified theory that explains all correlated electron systems.
