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jan 17, 1897 - J.J. Thomson Used a CRT to experimentally determine the charge to mass ratio (e/m) of an electron =1.759 x 10 8 coulombs/gram. (1897)

Added to timeline:

21 Sep 2017
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The History of the Atom

Date:

jan 17, 1897
Now
~ 121 years ago
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