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Module 1: Historia y desarrollo de la teoría atómica

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Chemistry - Democritus

Democritus

Puzzled by the different densities of substances, Democritus concluded,
around the end of the fifth century BC, that and that matter was made of
indivisible pieces he called He also suggested that all chemical changes
involved the separating and joining of these atoms. Other theories were
more readily accepted at the time and the concept of was not to really
take off for over 2000 years.

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