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according to classical free electron theory of electrons
- an atom contains an electrons in its outer most orbits and metal contains such type of atoms
- free electrons moves randomly entire the volume of the metal like the gas molecules in container
- while random motion of moving of electrons they collide with fixed positve ions or wiht themselves and the collisions formation due to collisions is elastic collosion that means there is no loss of energy.
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What is the main difference between Classical free Electron theory and Quantum free Electron theory?
Electrons are fermions and thus cannot occupy the same quantum states. They obey Fermi-Dirac statistics, and will occupy energy levels accordingly. This is different to the classica state where all electrons are pretty much equal (equal energies etc) and are not taken to be distrubuted amongst multiple states and energies. See Fermi Gas Model for a treatment of quantum free electron theory.
What are repelled in VSEPR theory?
Electron pairs
What is the definition of normal science?
Refers to the routine work of scientists experimenting with an established theory without attempting to challenge the underlying assumptions of that theory.
What is the definition of VESPR Theory?
VSEPR theory stands for Valence Shell Electron Pair Repulsion theory. It is a model used to predict the geometry of molecules based on minimizing the repulsion between electron pairs in the valence shell of an atom. By considering the repulsions between electron pairs, VSEPR theory helps determine the shape of molecules.
What is an escaped electron called?
An escaped electron is called a FREE electron, simple as that. It means: not bound or belonging to a particular atom (or ion)
Free-electron theory of metals is used for?
write note on free electron theory
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 is the difference between free electron theory and nearly free electron theory?
free electron model not take into account the potential neither the electron interaction. nearly free electron take into account the potential.J.C. Aguiar
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.
What is classical free electron theory of metal?
Classical free electron theory is modeled by drude - Lorentz to explian elctrical conductivity in metals. According to this free electron in a metal (valence electron) move randdomly at room temperature and these free electron are drifted in opposite to the direection of the applied electric field. This is repsonsible for the conduction. Here all the free elctron are are considered as equal in all aspect.
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
Compare the assumptions Theory X makes about workers with those of Theory Y How do these different assumptions influence management styles?
The assumption that Theory X and Theory Y about workers influences management styles. The assumptions of these two theories differ from employee motivation as well as satisfying employees' needs.
What is the main difference between Classical free Electron theory and Quantum free Electron theory?
Electrons are fermions and thus cannot occupy the same quantum states. They obey Fermi-Dirac statistics, and will occupy energy levels accordingly. This is different to the classica state where all electrons are pretty much equal (equal energies etc) and are not taken to be distrubuted amongst multiple states and energies. See Fermi Gas Model for a treatment of quantum free electron theory.
What are the basic assumptions of strength design theory?
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What are the assumptions of multiplier theory of keynes?
closed economy
What theory has some basic assumptions are human behavior is constitutionally or genetically determined?
gene theory
What is theory of strategy?
AN EXPLANATION OF THE ASSUMPTIONS AND PREMISES UNDERLYING STRATEGY
