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Podcast: 4. Chemistry and Physics
Episode:

Atomic Theory
Category: Science & Medicine
Duration: 00:00:52
Publish Date: 2011-07-13 19:29:00
Description: Transcript: The atomic theory is the basis of modern chemistry. Dalton published his work in 1810. There are a few key ideas. All elements are composed of atoms. Each element has fundamental and unique chemical properties and is composed of atoms, each of which has unique weight. Compounds are formed when atoms combine in specific proportions into a molecule. Each compound or molecule has unique chemical properties. Elements and compounds combine and separate in chemical reactions. Elements and their fundamental counterparts, atoms, cannot be further broken or subdivided, and one element cannot be changed into another by chemical means.
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