Concept explainers
The predictions that conclude that radioactive emission consists of positively charged particles, negatively charged particles, and neutral particles.
Answer to Problem 1RQ
Solution:
Testing the deflection of
Explanation of Solution
Introduction:
Rutherford, in 1899,
Explanation:
By passing radiation through a magnetic field, the behavior of particles in radiation can be observed.
Rutherford conducted an experiment where the radiation emitting from a radioactive sample passes through a 
field pointing into the page, and allowed them to fall on a scintillation screen placed perpendicular to the incident beam.
By the right-hand rule, if radiation contains positively charged particles, then the particle should deflect upwards due to the magnetic field. And, if radiation contains negatively charged particles, it should deflect downwards on the scintillation screen.
The outcome was that the scintillation screen glowed in three places: straight ahead, deflected up, and deflected down. And, the downward deflection was much farther than the upward deflection from the un-deflected radiation.
Conclusion:
So, the experiment suggested that the radioactive radiation consists of three components: positively charged particles (alpha particles), negatively charged particles (beta particles), and neutral particles (gamma rays) that were not deflected by the magnetic field.
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Chapter 29 Solutions
College Physics
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