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History of the Atomic Theory!
From Democritus to James Chadwick
By Allison Strub
Sir William Crookes
Late 1800's
Cathode Rays
He sealed gas in a tube and sent an electric current through it. The tube had electrodes at both ends and a flow was created between the two.
Date Of Contribution:
Experiment:
Contribution:
Model Of The Atom:
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