Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises: 2.37a

Answer

For the cathode ray tube, the charged particles are electrons. For the mass spectrometer, the charged particles are positive ions.

Work Step by Step

Looking at Figure 2.4, the cathode rays are electrons - they are originated at the cathode and accelerate towards the anode. In the mass spectrometer, the charged particles are ions produced between electrons and the particles in the gas sample introduced.
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