InterviewSolution
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what is a free electron density |
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Answer» free electron density is probability of electron to find the electron in the conduction band Free Electron Density in a Metal The free electron density in a metal is a factor in determining its electrical conductivity. It is involved in the Ohm's law behavior of metals on a microscopic scale Free Electron Density in a Metal The free electron density in a metal is a factor in determining its electrical conductivity. It is involved in the Ohm's law behavior of metals on a microscopic scale The free electron density in a metal is a factor in determining its electrical conductivity. It is involved in theOhm's law behaviorof metals on a microscopic scale. Because electrons are fermions and obey the Pauli exclusion principle, then at 0 K temperature the electrons fill all available energy levels up to theFermi level. Therefore the free electron density of a metal is related to the Fermi level and can be calculated from  Inchemistryelectron densityis the measure of theprobabilityof anelectronbeing present at a specific location. According toquantum mechanics, due to theuncertainty principleon an atomic scale the exact location of an electron cannot be predicted, only the probability of its being at a given position; therefore electrons in atoms and molecules act as if they are "smeared out" in space. For one-electron systems, the electron density at any point is proportional to the square magnitude of thewavefunction. Thefree electron densityin a metal is a factor in determining its electrical conductivity. It is involved in the Ohm's law behavior of metals on a microscopic scale I don't no response to George good but he is the one that I dont know this time he electron density images were calculated using the integral intensities of Bragg reflections. Fig. 6 shows the electron density maps for. |
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