Question: Joseph Thomson used cathode rays to make an important discovery. Which statement about his experiment is true? Question 2 options: Thomson figured out how to

Joseph Thomson used cathode rays to make an important discovery. Which statement about his experiment is true?
Question 2 options:
Thomson figured out how to deflect cathode rays with an electric field.
Thomson discovered that air could be negatively ionized
Thomson realized that the discharge tube needed to be at or near absolute zero degrees.
Thomson realized a cathode ray could ionize the glass at the far side of the discharge tube.

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