Atomic Theory Past and Present A. Democritus (400 BCE) Matter is made up of particles called âatomosâ or atoms http://www.timelineindex.com/content/view/1228 I. Early Atomic…
Atomic Theory Past and Present A. Democritus (400 BCE) Matter is made up of particles called âatomosâ or atoms http://www.timelineindex.com/content/view/1228 I. Early Atomic…