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History of the Atomic Theory!
From Democritus to James Chadwick
By Allison Strub
The Atom
Democritus
Democritus broke a seashell in half and continued to do so until it was a fine powder and he could no longer divide the shell. Each tiny grain of powder represents an atom.
4th Century BC/BCE
Date Of Contribution:
Experiment:
Contribution:
Model Of The Atom:
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