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 ______ _____ ____ ______ ______ _____.
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________ ___ _____ ________ _____ ______ __________ _____ ___.
______ _________ ______ ______ ________ _______ ________ ________ _______.
_______ _________ ____ ______ ______ __________ ____ _____.
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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 ______ _____ ____ ______ ______ _____.
___ __________ _________ ______ _____ _________ _____ ____.
_____ _________ ______ ________ _____ _________ ___ _______ _______ ________ _________ ______.
_________ _________ _____ ___ ________ ___ ______ ___ ______ _____.
_____ ________ ______ ______ ___ _________ _____ ______.
___ ____ ________ ________ ____ _______ ___ _________.
______ __________ ______ __________ _______.
___ _____ ____ ______ _____ ______.
_________ _______ _________ ____ __________ _____ _________.
_____ ______ ___ _______ ____ ______.
________ ______ ____ _____ _________ ____ _____ _________ ___ ______ ________ ______.
______ _____ ______ _________ __________ _______.
_____ ______ ______ ____ _________.
____ ___ ______ ________ ____ ________ ________ ______.
________ ___ _____ ________ _____ ______ __________ _____ ___.
______ _________ ______ ______ ________ _______ ________ ________ _______.
_______ _________ ____ ______ ______ __________ ____ _____.
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