J. J. Thomson discovered the ratio of charge to mass of electrons. (jan 1, 1906 – 23h 59min, dec 31, 1906 y)
Description:
He utilized cathode ray tubes and electromagnetic theory to find that the ratio of charge to mass of electrons is _ C/mAdded to timeline:
Date:
jan 1, 1906
23h 59min, dec 31, 1906 y
~ 12 months