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The top documents tagged [valence theory]
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valence theory
Chemistry 125: Lecture 23 Valence Theory and Constitutional Structure (1858) Youthful chemists Couper and Kekulé replaced radical and type theories with.
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Development of the Atomic Theory. Democritus 460 BC - Greek philosopher proposes the existence of the atom ; calls it Atomos meaning indivisible. His.
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