After viewing the video and reading the 5 modules in Vision Learning, write a list of the scientists mentioned in the reading and summarize each scientist's contribution to the Atomic Theory. Complete

Atomic Theory Scientists and Their Contributions

Scientist (date)

Contribution(s)

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

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”.