THE EMPIRICAL ELECTRON THEORY OF SOLIDS AND MOLECULES——EQUIVALENT VALENCE ELECTRON HYPOTHESIS

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<正> Since the publication of the empirical electron theory by the author in 1978, five groups of scientific workers have applied it: (ⅰ) to the calculation of the cohesive energies of alkaline metals and alkaline earths, (ⅱ) to the analysis of Coope
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