models scientist
Atomic Theory Scientists and Their Contributions
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Scientist (date) |
Contribution(s) |
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Empedocles (492 BCE and 432 BCE) |
All matter is composed of four elements: fire, air, water, and earth. The ratio of these four elements determines the properties of the matter |
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Democritus (460 BCE - 370 BCE) |
Matter can be cut into its constituent parts, these parts still possess all the properties of the original matter. He named this “atomos”. |
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