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The immaterial nature and the aetherial hypothesis of cathode rays were proved wrong by J. J. Thomson. He concluded that the rays were comprised of particles. His entire works can be divided into three different experiments. In the first, the magnetic effect on cathode rays was studied while in the second, the rays were deflected by an electric field.
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Why did J.J. Thomson conclude that cathode rays were made up of small particles that had mass?
J.J. Thomson concluded that cathode rays were composed of small particles with mass through his experiments involving electric and magnetic fields. He observed that the rays were deflected by these fields, indicating that they carried a negative charge. Additionally, by measuring the degree of deflection, he was able to estimate the mass-to-charge ratio of the particles, leading him to identify them as electrons. This evidence demonstrated that cathode rays were not just waves but consisted of tangible particles.
What did Thomson conclude about the particles in cathode rays?
Thomson concluded that cathode rays are made up of negatively charged particles, which he called electrons. He determined that these electrons are a fundamental component of matter and have a much smaller mass compared to atoms.
When Thomson held a positively charged plate near the cathode ray the beam bent toward the plate What conclusion can be drawn from this observation?
The beam bending towards the positively charged plate indicates that the cathode rays are negatively charged. This observation led Thomson to conclude that the cathode rays are made up of negatively charged particles, which we now know as electrons.
How did J J Thomson show that cathode rays are different from light?
Thomson appreciated in 1897 that the cathode rays are formed from negative electrically charged very small particles. These particles are the electrons. From this Thomson concluded that the atom is not indivisible and also that the atom must contain and a positive charged particle.
How j.j Thomson discovered electrons are negative?
J.J. Thomson discovered electrons are negative by conducting experiments with cathode rays in vacuum tubes. He observed how the rays were attracted to a positively charged plate, leading him to conclude that the particles in the rays carried a negative charge, which he named electrons.
What did J.J. Thomson's experiments with cathode ray tubes imply about the mass of an electron?
J.J. Thomson's experiments with cathode ray tubes suggested that electrons have a very small mass compared to other particles.
What is the particles in Thomson's tube?
In Thomson's tube, also known as the cathode ray tube, the primary particles involved are electrons. These negatively charged particles are emitted from a cathode and are accelerated towards an anode, creating a stream of electrons, or cathode rays. When subjected to electric or magnetic fields, these electrons can be deflected, allowing for the study of their properties and confirming their charge-to-mass ratio. Thomson's experiments led to the discovery of the electron as a fundamental particle of matter.
Which scientist used a cathode ray tube to discover negatively charged subatomic particles?
The scientist who used a cathode ray tube to discover negatively charged subatomic particles was J.J. Thomson.
Which scientist discovered that cathode rays are made up of negatively charged particles?
J.J. Thomson discovered that cathode rays are made up of negatively charged particles. He conducted experiments using cathode ray tubes and found that the rays were deflected by electric and magnetic fields in a manner consistent with the presence of negatively charged particles.
Which scientist did experiments involing a form of cathode ray tube?
J.J. Thomson used cathode ray tubes to prove the existence of electrons.
What is Thompson's cathode ray?
homson conducted a series of experiments with cathode rays and cathode ray tubes leading him to the discovery of electrons and subatomic particles. Thomson used the cathode ray tube in three different experiments.
What experimental evidence did Thomson have that atoms of all elements contain electrons?
J.J. Thomson's evidence for the presence of electrons in all atoms came from his experiments with cathode rays. He observed that cathode rays were deflected by electric and magnetic fields, indicating that they carried a negative charge. Additionally, he found that the deflection was consistent regardless of the type of gas in the cathode tube, suggesting that the particles were a fundamental component of all atoms. This led him to conclude that electrons were universal constituents of matter.
