A T O M I C T H E O R Y Reg
Development of Atomic Theory. Democritus GREECE around 400 b.c. Democritus said: –47 The material cause of all things that exist is the coming together.
1 Elements, Atoms & Ions Chapter 4. 2 Elements Over 112 known, of which 88 are found in nature –others are man-made Abundance is the percentage found.
