Memory The atom & periodic table Version en ligne Match the pairs! par Nikita Fitzpatrick This experiment helped to discover the mass to charge of an electron The spectrum gained when light is absorbed The spectrum gained when light is emitted through electron movement down levels George Stoney gave this a name..... A image taken in the same region of light as the Paschen series Thomson used this device to determine that cathode rays have a - charge William Crookes used this to help to discover cathode rays Put forward a theory for the atom based on the element hydrogen
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