Exam1_solution - MSE 2001 H 1st Examination Instructor:...

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MSE 2001 H 1 st Examination Instructor: Seung Soon Jang Name: GT ID #: GT Account ID: Major: 1. When we investigate properties of materials at atomic level, what factors we need to check first? (5 points) 1. the types of _atoms ____ present 2. the types of _bonds ___ in the material 3. the way the atoms are _packed ___ 2. By solving the schrödinger equation ( Ψ = Ψ E H ), we can obtain electronic configuration. H is a Hamiltonian that is an energy operator. (5 points) is __ Ψ wavefunction ____, meaning a probability amplitude describing the position of electron. E is __eigenvalue ______ of the Hamiltonian, meaning the energy state of such orbital 3. What approximation makes ( ) ( )( ) electrons nuclei electrons nuclei total Ψ Ψ = Ψ , possible? And explain why this approximation is reasonable. (5 points) Born-Oppenheimer Approximation When we describe the movement of electrons and nucleus, we can treat the nucleus is fixed at certain position and consider only electrons move around the fixed nucleus because the nucleus is much heavier than electrons. 4. No two electrons can have an identical set of quantum numbers. _Pauli Exclusion Principle _ (5 points) 5. In a (steady state , equilibrium state), the recently observed behaviour of the system will continue into the future whether or not it is reversible. On the other hand, in (steady state,
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This note was uploaded on 06/29/2009 for the course MSE 2001 taught by Professor Tannebaum during the Spring '08 term at Georgia Institute of Technology.

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Exam1_solution - MSE 2001 H 1st Examination Instructor:...

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