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Who performed the cathode ray experiment which led to the discovery of the electron?
Crookes observed that the cathodic rays are deflected by a magnetic field and concluded that this beam is negatively charged. Thomson established that the beam is composed from a new type of particles called by Fitzgerald electrons. Thompson also believed that electrons float in a "pudding" of positive charges.
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DevinJ.J.thompson discovered the cathode ray after he discovered electrons, which are negatively charged particles. He performed experiments that involved passing electric currents through gases at low pressure. He sealed the gases in glass tubes fitted at both with metal disks called electrodes. The electrodes were, in turn, connected to a source of electricity. One electrode, the anode, became positively charged. The other electrode, the cathode, became negatively charged. The result was a glowing beam, or a cathode ray, that traveled from the cathode to the anode.
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How did JJ Thompson demonstrate the existence of the electron?
JJ Thomson demonstrated the existence of the electron through his cathode ray tube experiment. By observing the behavior of cathode rays in an evacuated tube, he was able to show that these rays were composed of negatively charged particles (electrons) that were much smaller than an atom. This discovery led to the development of the plum pudding model of the atom.
Who identified cathode rays as subatomic particles?
J.J. Thomson is credited with identifying cathode rays as streams of negatively charged subatomic particles, which were later named electrons. His experiments with cathode ray tubes led to the discovery of the electron and contributed to the development of the atomic theory.
How did thompsons cathode ray experiment change the atomic model of the day?
Thompson's cathode ray experiment led to the discovery of the electron, which was a fundamental particle in the atom. This challenged the earlier model of the atom as a solid, indivisible sphere by proposing a structure of a positively charged sphere with negatively charged electrons embedded within it. Thompson's model contributed to the development of the modern atomic model.
What particles did jj Thomson discover?
J.J. Thomson discovered the electron in 1897 while conducting experiments with cathode rays. This discovery was groundbreaking as it provided evidence for the existence of subatomic particles.
How did thomas discover the electron?
J. J. Thomson discovered the electron using an experiment involving cathode rays and a magnetic field. When subjected to the magnetic field, the cathode ray was deflected. If the magnetic field was flipped, the cathode ray was deflected in the opposite direction. This proved that a cathode ray was a stream of negatively charged particles that would later be deemed electrons.
