a.When atoms are brought together in a solid, _________________________ interact

Question

a.When atoms are brought together in a solid, _________________________ interactions cause energy levels to split into closely spaced states known as ____________________. b.The _______________ band is the highest band that is normally filled with electrons which are used for __________________________, above this band is the ________________ band where electrons are delocalized. c. The probability that an electron will have a given energy above the Fermi Level is given by the __________________________________________. d. In a semiconductor, the transition of an electron from the valence band to the conduction band (or vice versa) requires absorption (or release) of ________________________ which can be in the form of _____________________ or ______________________ . e. A _______________ is an impurity in a semiconductor that substitutes for an atom in the host crystal with a different _____________ state, which results in the ______________ or ____________________ of an electron by the impurity.

Explanation / Answer

.When atoms are brought together in a solid, inter moleculor interactions cause energy levels to split into closely spaced states known as orbitals . b.The valence band is the highest band that is normally filled with electrons which are used for neutralizing molecule, above this band is the conduction band where electrons are delocalized. c. The probability that an electron will have a given energy above the Fermi Level is given by the Fermi-Dirac statistics.. d. In a semiconductor, the transition of an electron from the valence band to the conduction band (or vice versa) requires absorption (or release) of energy which can be in the form of electrical or optical . e. A dopant is an impurity in a semiconductor that substitutes for an atom in the host crystal with a different valence state, which results in the excess or lacking of an electron by the impurity.

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