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Chemists in the 19th century constructed an evacuated glass tube with wires inserted in both ends. When an electrical current was generated at the anode, a 'cathode ray' would pass to the cathode creating a fluorescent glow. These experiments helped chemists better understand the nature of the electron. J.J. Thomson added a magnetic field to a cathode ray tube to show that the ray would bend. His experiments demonstrated that the rays were negatively charged particles. He then calculated the mass to charge ratio of the electric ion (electron). According to his calculations, how massive was the electron relative to the hydrogen ion? Voltage Source A) The same size B) -1000 times larger C) ~1000 times smaller D) -10 times larger Anode Cathode E) ~10 times smaller

Chemists in the 19th century constructed an evacuated glass tube with wires inserted in both ends. When an electrical current was generated at the anode, a 'cathode ray' would pass to the cathode creating a fluorescent glow. These experiments helped chemists better understand the nature of the electron. J.J. Thomson added a magnetic field to a cathode ray tube to show that the ray would bend. His experiments demonstrated that the rays were negatively charged particles. He then calculated the mass to charge ratio of the electric ion (electron). According to his calculations, how massive was the electron relative to the hydrogen ion? Voltage Source A) The same size B) -1000 times larger C) ~1000 times smaller D) -10 times larger Anode Cathode E) ~10 times smaller

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter3: Atomic Shells And Classical Models Of Chemical Bonding
Section: Chapter Questions
Problem 7P
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Chemists in the 19th century constructed an evacuated glass tube with wires inserted in both ends. When an electrical current was generated at the anode, a 'cathode ray' would pass to the cathode creating a fluorescent glow. These experiments helped chemists better understand the nature of the electron. J.J. Thomson added a magnetic field to a cathode ray tube to show that the ray would bend. His experiments demonstrated that the rays were negatively charged particles. He then calculated the mass to charge ratio of the electric ion (electron). According to his calculations, how massive was the electron relative to the hydrogen ion? Voltage Source A) The same size B) ~1000 times larger C) ~1000 times smaller + S D) ~10 times larger Anode Cathode E) ~10 times smaller
Transcribed Image Text:Chemists in the 19th century constructed an evacuated glass tube with wires inserted in both ends. When an electrical current was generated at the anode, a 'cathode ray' would pass to the cathode creating a fluorescent glow. These experiments helped chemists better understand the nature of the electron. J.J. Thomson added a magnetic field to a cathode ray tube to show that the ray would bend. His experiments demonstrated that the rays were negatively charged particles. He then calculated the mass to charge ratio of the electric ion (electron). According to his calculations, how massive was the electron relative to the hydrogen ion? Voltage Source A) The same size B) ~1000 times larger C) ~1000 times smaller + S D) ~10 times larger Anode Cathode E) ~10 times smaller
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