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J. J. Thomson discovered the ratio of charge to mass of electrons. (1 jan 1906 ano – 23 h 59 m, 31 dez 1906 ano)

Descrição:

He utilized cathode ray tubes and electromagnetic theory to find that the ratio of charge to mass of electrons is _ C/m

Adicionado na linha do tempo:

Data:

1 jan 1906 ano
23 h 59 m, 31 dez 1906 ano
~ 12 months