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