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History of the Atomic Theory!
From Democritus to James Chadwick
By Allison Strub
Ernest Rutherford
Early 1900's
Discovered dense positive nucleus
Fired energetic particles through a thin gold sheet and most would pass through, but one every hundred would bounce back. This happened because two positive charges hit eachother and the light reflected.
Date Of Contribution:
Experiment:
Contribution:
Model Of The Atom:
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