Question
Why the approximation methods are necessary in quantum chemistry? Give the difference between variation method and the Perturbation theory.
Answer :
Word Count : 159
Exact solutions of the Schrödinger equation are possible only for very simple systems like hydrogen atom, but most chemical systems involve many electrons and nuclei, making exact treatment impossible. Approximation methods ____ _____ _____ _________ ________.
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Exact solutions of the Schrödinger equation are possible only for very simple systems like hydrogen atom, but most chemical systems involve many electrons and nuclei, making exact treatment impossible. Approximation methods ____ _____ _____ _________ ________.
______ ___ ________ _____ ________ ________.
__________ ___ ___ _________ ___ __________ ______ ________.
________ __________ ___ ______ ______ _________ __________ ________.
____ _______ _______ _______ _______ ____ ___.
________ _______ ____ _____ ________ _________ __________ ___ ___ ____ ___ __________.
______ ________ _________ ____ _________.
_____ ____ ___ ________ ______ _____ ___ __________ _________.
____ ___ _______ ___ ___ _________ ___ ___.
____ _____ _______ _______ ______ _____.
________ _____ _____ __________ ______ _______ _________ __________ ________ ___ _______ __________.
____ ___ _____ _______ ___ _________ ____ ___ ______ ____.
_______ __________ _____ __________ _____ ______ ___ _________ _________.
________ _____ ____ __________ __________.
___ _____ __________ _________ __________ ____ ___ ___ ____ ___ ____ _________.
_______ _____ __________ ______ __________ _______.
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